C++ 算法：寻找小于等于 N 的完全数

#include using namespace std;

int main() { int N; cin >> N;

int count = 0;
for (int i = 1; i <= N; i++) {
    int sum = 0;
    for (int j = 1; j < i; j++) {
        if (i % j == 0) {
            sum += j;
        }
    }
    if (sum == i) {
        count++;
    }
}

cout << count << endl;

return 0;

}