fn main() {
    let mut n = String::new();
    std::io::stdin().read_line(&mut n).ok();
    let n: usize = n.trim().parse().unwrap();
    let mut k = String::new();
    std::io::stdin().read_line(&mut k).ok();
    let k: usize = k.trim().parse().unwrap();

    let mut result = 0usize;
    for ac in 2..=(k as f64).sqrt().floor() as usize {
        if k % ac > 0 { continue; }
        let bd = k / ac;
        let accnt = if ac <= n+1 { ac-1 } else if ac > 2*n { 0 } else { 2*n + 1 - ac };
        let bdcnt = if bd <= n+1 { bd-1 } else if bd > 2*n { 0 } else { 2*n + 1 - bd };
        if accnt == 0 || bdcnt == 0 { continue; }
        if ac == bd {
            result += accnt * bdcnt;
        } else {
            result += 2 * accnt * bdcnt;
        }
    }
    println!("{}", result);
}