Soliution for CountFactors

// Codility - CountFactors
// Count factors of given number n.
// https://codility.com/demo/take-sample-test/count_factors/

function solution(N) {
    // write your code in JavaScript (Node.js 6.4.0)

    if (N <= 2) {
        return N;
    }

    let max = Math.ceil(Math.sqrt(N));

    //1 and N are always factors:
    let numOfFactors = 2;

    for (let i = 2; i < max; i++) {
        let isFactor = N%i === 0;
        numOfFactors += (isFactor ? 2 : 0)        
    }
    
    numOfFactors += (N/max === max)
    
    return numOfFactors;
    
}