题解 | #完全数计算#

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNext()){
            int i1 = scanner.nextInt();
            int countout=0;
            for (int i = 1; i <=i1; i++) {
                int count=0;
                for (int j = 1; j <=i; j++) {
                    if (i%j==0){
                        count+=j;
                    }
                }
                if (count-i==i&&i!=1){
                    countout++;
                }
            }
            System.out.println(countout);
        }
    }
}