#include <fstream>

using namespace std;

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

int n,v[501],i,j,d[501][1005];

int cmmdc(int a,int b)
{
    int r;
    while(b!=0)
    {
        r = a%b;
        a = b;
        b = r;
    }
    return a;
}
int main()
{
    in>>n;
    for(i=1; i<=n; i++)
        in>>v[i];
    d[0][0]=1;
    for(i=1; i<=n; i++)
    {
        for(j=0; j<=1000; j++)
            d[i][cmmdc(j,v[i])]+=d[i-1][j];
        for(j=0; j<=1000; j++)
            d[i][j]+=d[i-1][j];
    }
    out << d[n][1];
    return 0;
}