Perfect Number

Write a program to
1] Check Whether Number is Perfect or Not ?
2] Print First n Perfect Numbers.
3] Print Perfect Numbers between Range.
In number theory, a perfect number is a positive integer that is equal to the sum of its proper positive divisors, that is, the sum of its positive divisors excluding the number itself.

#include<stdio.h>
int Check_for_Perfect(int);
enum Num_Status{IS_PERFECT,IS_NOT_PERFECT};
int main()
{
	int num1,op,num2;
	unsigned int PerfectCount,i;
	printf("1] Check Whether Number is Perfect or Not\
	\n2] Print First n Perfect Numbers\
	\n3] Print Perfect Numbers between Range\n\nEnter Option : ");
	scanf("%d",&op);
	if(op == 1)
	{
		printf("Enter Number to Check = ");
		scanf("%d",&num1);
		if(IS_PERFECT == Check_for_Perfect(num1))
			printf("%d is a Perfect Number\n",num1);
		else
			printf("%d is a Not a Perfect Number\n",num1);
	}
	else if(op == 2)
	{
		printf("How Many First Perfect Numbers Do You Want ? ");
		scanf("%d",&num1);
		PerfectCount = 0;
		for(i = 0;PerfectCount < num1;i++)
		{
			if(IS_PERFECT == Check_for_Perfect(i))
			{
				printf("%d ",i);
				PerfectCount++;
			}
		}
	}
	else if(op == 3)
	{
		PerfectCount = 0;
		printf("Enter Number 1 = ");
		scanf("%d",&num1);
		printf("Enter Number 2 = ");
		scanf("%d",&num2);
		printf("Perfect between %d and %d are \n",num1,num2);
		for(i = num1;i <= num2;i++)
		{
			if(IS_PERFECT == Check_for_Perfect(i))
			{
				printf("%d ",i);
				PerfectCount++;
			}
		}
		printf("\nTotal Perfect Numbers are = %d\n",PerfectCount);
	}
	else
		printf("Invalid Option...\n");
	printf("\n");
	return 0;
}
int Check_for_Perfect(int n)
{
	int i,s = 0;
	for(i = 1;i < n; i++)
	{
		if(n%i == 0)
			s = s + i;
	}
	if(s == n)
		return IS_PERFECT;
	else
		return IS_NOT_PERFECT;
}

Output

1] Check Whether Number is Perfect or Not
2] Print First n Perfect Numbers
3] Print Perfect Numbers between Range
Enter Option : 1
Enter Number to Check = 24
24 is a Not a Perfect Number

1] Check Whether Number is Perfect or Not
2] Print First n Perfect Numbers
3] Print Perfect Numbers between Range
Enter Option : 1
Enter Number to Check = 28
28 is a Perfect Number

1] Check Whether Number is Perfect or Not
2] Print First n Perfect Numbers
3] Print Perfect Numbers between Range
Enter Option : 2
How Many First Perfect Numbers Do You Want ? 5
0 6 28 496 8128

1] Check Whether Number is Perfect or Not
2] Print First n Perfect Numbers
3] Print Perfect Numbers between Range
Enter Option : 3
Enter Number 1 = 1
Enter Number 2 = 500
Perfect between 1 and 500 are
6 28 496
Total Perfect Numbers are = 3