#include <fstream>
#include <algorithm>

using namespace std;

ifstream cin("indep.in");
ofstream cout("indep.out");

int cmmdc(int a, int b)
{
    int c;
    while (b)
    {
        c = a % b;
        a = b;
        b = c;
    }
    return a;
}

int n;
long long v[505], d[1005];

int main()
{
    cin >> n;
    for(int i = 1; i <= n; i++)
        cin >> v[i];
    // for(int i = 1; i <= n; i++)
    //d[i] = 1;
    for(int i = 1; i <= n; i++)
    {
        for(int j = 1; j <= 1000; j++)
        {
          d[cmmdc(v[i], j)] += d[j];
        }
        d[v[i]]++;
    }
    cout << d[1];
    return 0;
}