use std::io::*;

fn gcd(a: u64, b: u64) -> u64 {
    if b == 0 {
        return a;
    }
    gcd(b, a % b)
}

fn main() {
    let mut s: String = String::new();
    std::io::stdin().read_to_string(&mut s).ok();
    let mut itr = s.trim().split_whitespace();
    let n: usize = itr.next().unwrap().parse().unwrap();
    let a: Vec<u64> = (0..n)
        .map(|_| itr.next().unwrap().parse().unwrap())
        .collect();

    let mut dp = std::collections::HashMap::new();
    dp.insert(0u64, 1u64);
    for i in 0..n {
        let mut next = std::collections::HashMap::new();
        for (&value, &count) in dp.iter() {
            // use
            let g = gcd(value, a[i]);
            let val = next.entry(g).or_insert(0);
            *val += count;
            // not use
            let val = next.entry(value).or_insert(0);
            *val += count;
        }
        dp = next;
    }
    let val = dp.entry(1).or_insert(0);
    println!("{}", *val);
}