View Code of Problem 27

#include <stdio.h>
int main()
{
	int i, j;
	int a, b;
	while(scanf("%d %d", &a, &b) != EOF)
	{
		long sum1 = 0;
		for(i = a + 1; i < b; i++)
		{
			int sum = 0;
			for(j = 2; j <= i; j++)
			{
				if(i % j == 0)
				{
					sum += j;
				}
			}
			if(sum == i)
			{
				sum1 += sum;
			}
		}
		printf("%ld\n", sum1);
	}
	return 0;
}