#include <fstream>
using namespace std;
int cmmmc (int a , int b)
{
    int c;
    while ( a & b )
    {
       c=a%b;
       a=b;
       b=c;
    }
    return a;
}
int main ()
{
    ifstream fin ("sum.in");
    ofstream fout ("sum.out");
    int n,x,s=0;
    fin>>n;
    for (int i=0;i<n;++i)
    {
        fin>>x;
        for (int j=1;j<=2*x;++j)
        {
            if (cmmmc(j,x)==1)
            {
                s+=j;
            }
        }
        fout<<s;
    }
}