Count Factors

class Solution {
    public int solution(int N) {
        // write your code in Java SE 8
        int fac=0;
        int count=0;
        for(int index=(int)Math.sqrt(N);index>0;index--){
            fac=N/index;
            
            if(fac*index==N){count=count+2;
            if(fac==index){count-=1;}}
        }
        return count;
    }
}