#include <iostream>
#include <fstream>
using namespace std;
ifstream in("indep.in");
ofstream out("indep.out");
const int C=1001;
int n,v[505],d[505][1005][C];
int cmmdc(int a,int b)
{
    int r;
    while(b != 0)
    {
        r = a%b;
        a = b;
        b = r;
    }
    return a;
}
void adunare(int a[C],int b[C])
{
    int i,aux,t=0;
    for(i=1 ; i<=a[0] || i<=b[0] || t!=0 ; i++)
    {
        aux = a[i] + b[i] + t;
        a[i] = aux%10;
        t = aux/10;
    }
    a[0]=i-1;
}
void rez()
{
    int c;
    d[0][0][0] = d[0][0][1] = 1;
    for(int i=1;i<=n;i++)
    {
        for(int j=0;j<=1000;j++)
        {
            c = cmmdc(j,v[i]);
            adunare(d[i][c],d[i-1][j]);
        }
        for(int j=0 ; j<=1000 ; j++)
            adunare(d[i][j],d[i-1][j]);
    }
}

void afisare(int v[C])
{
    for(int i=v[0] ; i>=1 ; i--)
        out << v[i];
    out << "\n";
}

int main()
{
    in>>n;
    int i,j;
    for(i=1;i<=n;i++)
        in>>v[i];
    rez();
    afisare(d[n][1]);
    return 0;
}