[рони]

Gm5,

<script>
        function Freindly(min, max) {
            const obj = {};
            for (let i = min; i <= max; i++) {
                obj[i] = getSum(i);
            }
            return Object.entries(obj)
            .filter(([a, b], i) =>  obj[b] && obj[b] == a && a != b )
            .filter((_, i) => i % 2 === 0)
            .map(([a, b]) => [+a, b]);
        }
        function getSum(num) {
            let end = num/2,
                sum = 0;
            for (let i = 1; i <= end; i++) {
                if (num % i === 0) sum += i;
            }
            return sum;
        }
        let x = Freindly(1, 9000);
        document.write(JSON.stringify(x))
    </script>