Francisco Soto Telles's questions

I am trying to find friendly numbers among the first 10000 numbers.

Friendly numbers means that the divisors of a number added are equal to the other and then they are friends.

In this code, equal numbers are not taken into account.
I have managed to find them and make a functional code but when I run it it takes 13min to find the 10000 numbers.

var num1;
var num2;

function divisor (x){
    var suma = 0;

    for(var k=1;k<= Math.floor(x/2) + 1; k++){
        if(x%k ==0){
            suma = suma + k;
        }
    }
    return suma;
}

for(var a = 2; a<10000; a++ ){
    num1 = divisor(a);

    for(var b= a; b<10000; b++){
        num2 = divisor(b);
        if(num1 == b && num2 == a && a<b){
            console.log(a + ' y ' + b + ' son amigos' + '\n');
        }
    }
}