#![allow(unused_imports)]
#![allow(non_snake_case)]
use std::cmp::*;
use std::collections::*;
use std::io::Write;

#[allow(unused_macros)]
macro_rules! debug {
    ($($e:expr),*) => {
        #[cfg(debug_assertions)]
        $({
            let (e, mut err) = (stringify!($e), std::io::stderr());
            writeln!(err, "{} = {:?}", e, $e).unwrap()
        })*
    };
}

fn count(ab: i64, n: i64) -> i64 {
    assert!(ab > 1);
    let a_min = max(1, ab - n);
    let a_max = min(ab - 1, n);
    max(a_max - a_min + 1, 0)
}

fn main() {
    let n = read::<i64>();
    let k = read::<i64>();

    let mut i = 2;
    let mut ans = 0i64;
    while i * i <= k {
        if k % i == 0 {
            let ab = i;
            let cd = k / i;
            debug!(ab, cd, count(ab, n), count(cd, n));
            let mut temp = count(ab, n) * count(cd, n);

            if ab != cd {
                temp *= 2;
            }
            ans += temp;
        }
        i += 1;
    }
    println!("{}", ans);
}

fn read<T: std::str::FromStr>() -> T {
    let mut s = String::new();
    std::io::stdin().read_line(&mut s).ok();
    s.trim().parse().ok().unwrap()
}

fn read_vec<T: std::str::FromStr>() -> Vec<T> {
    read::<String>()
        .split_whitespace()
        .map(|e| e.parse().ok().unwrap())
        .collect()
}