题解 | #完全数计算#
完全数计算
https://www.nowcoder.com/practice/7299c12e6abb437c87ad3e712383ff84
import java.util.*;
public class Main {
public static void main(String[] args) {
Scanner fzhinput = new Scanner(System.in);
int num = fzhinput.nextInt();
int sum,sl=0;
for(int i=4;i<=num;i++){
sum=0;
for(int j=1;j<i;j++){
if(i%j==0){
sum+=j;
}
}
if(sum==i){
sl++;
}
}
System.out.print(sl);
}
}
