编译器：VS2017
语言：C
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#pragma warning(disable:4996)
int factor(int i)
{
int s = 0;
for (int j = 1; j <i; j ++)
{
if (i%j == 0)
s = s + j;
}
return s;
}
int main()
{
int i, j, s1, s2;
for (i = 1; i < 30000; i++)
{
s1 = factor(i);
s2 = factor(s1);
if (s2 == i && s1>i)
printf("%d %d\n", i, s1);
}
return 0;
}