import java.util.*;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    long n = sc.nextLong();
    long k = sc.nextLong();
    long ans = 0;
    for(long i = 1; (i * i) <= k; i++) {
      if((k % i) == 0) {
        long j = k / i;
        long t1 = Math.min(n, i - 1) - Math.max(1, i - n) + 1;
        long t2 = Math.min(n, j - 1) - Math.max(1, j - n) + 1;
        long t = 0;
        if((t1 >= 0) && (t2 >= 0)) {
          t = t1 * t2;
          if(i == j) {
            ans += t;
          } else {
            ans += (2 * t);
          }
        }
      }
    }
    System.out.println(ans);
  }
}