#include <fstream>
#define nmax 100001

using namespace std;

ifstream f("sum.in");
ofstream g("sum.out");

long long phi[nmax];
int n,x;

int main()
{
    for (int i=1; i<=nmax; i++)
        phi[i]=i-1;
    for (int i=2; i<=nmax; i++)
        for (int j=2*i; j<=nmax; j+=i)
            phi[j]-=phi[i];

    f >> n;
    while (n--){
        f >> x;
        long long s=x*phi[x]*2;
        g << s << "\n";
    }

    return 0;
}