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