6-3 使用函数输出指定范围内的完数

//使用函数输出指定范围内的完数#include<stdio.h>int factorsum(int n);int main(int argc,char const *argv[]){int m,n;printf("输入两个正整数m和n:");while(1){scanf("%d%d",&m,&n);if(m>=1&&m<=n&&n<=1000)break;printf("请重新输入:");}printf("%d和%d之间的完数为:\n",m,n);int i;for(i=m;i<=n;i++){if(i==factorsum(i))printf("%d\n",i);}return 0;}int factorsum(int n){int i;int sum=0;for(i=1;i<=n/2;i++){if(n%i==0)sum+=i;}return sum;}