#include <fstream>
#define MAX 1000005

using namespace std;
ifstream fin("sum.in");
ofstream fout("sum.out");

int phi[1000005];

int main()
{
    int n, x;
    fin >> n;
    for(int i=1; i<=100000; i++)
        phi[i] = i-1;
    for(int i=2; i<=100000; i++)
        for(int j=2*i; j<=100000; j+=i)
            phi[j] -= phi[i];
    for(int i=1; i<=n; i++)
    {
        fin >> x;
        fout << 2*x*phi[x] << "\n";
    }
    fin.close();
    fout.close();
    return 0;
}