#include <fstream>

using namespace std;
ifstream in ("sum.in");
ofstream out ("sum.out");
double phi[100001];
int main()
{
    int n,i,j,x,lim=100000;
    in>>n;
    for (i=1;i<=lim;i++)
        phi[i]=i;
    for (i=2;i<=lim;i++)
        if (phi[i]==i)
            for (j=i;j<=lim;j+=i)
            {
                phi[j]*=i-1;
                phi[j]/=i;
            }
    /*for (i=1;i<=lim;i++)
        out<<phi[i]<<" ";*/
    for (i=1;i<=n;i++)
    {
        in>>x;
        out<<x*phi[x]*2<<'\n';
    }
    return 0;
}