#include <fstream>
#include <iostream>
#include <cstring>
#define N 501
std::ifstream fin("indep.in");
std::ofstream fout("indep.out");
int n, arr[N]; int dp[2][N][1000];
void add(int A[], int B[])
{
      int i, t = 0;
      for (i=1; i<=A[0] || i<=B[0] || t; i++, t/=10)
              A[i] = (t += A[i] + B[i]) % 10;
      A[0] = i - 1;
}

void copy(int a[], int b[]){
    for(int i = 0; i <= b[0]; i++)
        a[i] = b[i];
}
int cmmdc2(int a, int b){
    if(b == 0)
        return a;
    return cmmdc2(b, a % b);
}

void print(int a[]){
     if (a[0]==0)
     	fout<<'0';
    for(int i = a[0]; i >=1; i--)
        fout << a[i];
    fout << "\n";
}
int main(){
    fin >> n;
    //std::cout << "verf";
    int mx = -1;
    for(int i = 1; i <= n; i++){
        fin >> arr[i];
        mx = std::max(arr[i], mx);
    }
    
    dp[0][arr[1]][0] = dp[0][arr[1]][1] = 1;
    for(int i = 2; i <= n; i++){
        for(int g = 1; g <= mx; g++)
            for(int k = 0; k < 1000; k++)
                dp[1][g][k] = 0;
        dp[1][arr[i]][0] = dp[1][arr[i]][1] = 1;
   
        for(int g = 1; g <= mx; g++){ 
            add(dp[1][g], dp[0][g]);
             add(dp[1][cmmdc2(arr[i], g)], dp[0][g]);
        }
        
        for(int g = 1; g <= mx; g++){
            copy(dp[0][g], dp[1][g]);
        }
 
    }
   print( dp[0][1]);
}