import java.io.*;
import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        long n = sc.nextLong();
        long k = sc.nextLong();
        long ans = 0;
        for (long i = 2; i <= Math.sqrt(k); i++) {
            if (k % i == 0) {
                long tmp = getCount(i, n) * getCount(k / i, n);
                if (i * i < k) {
                    tmp *= 2;
                }
                ans += tmp;
            }
        }
        System.out.println(ans);
    }
    
    static long getCount(long x, long n) {
        if (x == 1 || x > 2 * n) {
            return 0;
        } else if (x <= n) {
            return x - 1;
        } else {
            return n - (x - n) + 1;
        }
    }
}
class Scanner {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    StringTokenizer st = new StringTokenizer("");
    
    public Scanner() throws Exception {
        
    }
    
    public int nextInt() throws Exception {
        return Integer.parseInt(next());
    }
    
    public long nextLong() throws Exception {
        return Long.parseLong(next());
    }
    
    public String next() throws Exception {
        if (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
}