#include <fstream>
#include <algorithm>

using namespace std;

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

long long n,x,d[1005];

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