题解 | #完全数计算#

const rl = require("readline").createInterface({ input: process.stdin });
var iter = rl[Symbol.asyncIterator]();
const readline = async () => (await iter.next()).value;

void async function () {
    // Write your code here
    let n;
    let count=0;
    while(line = await readline()){
        n=+line;
    }
    for(let i=2;i<=n;i++){
        let sum=0;
        for(let j=1;j<=i/2;j++){
            if(i%j==0){
                sum+=j;
            }
        }
        if(sum==i){
            count++;
        }
    }
    console.log(count)
}()