#include <iostream>
#include <fstream>
#include <cstring>

using namespace std;

#define Nmax 100001

long long ciur[Nmax], n, nr, i, l;

void gen()
{
    for ( int i = 2; i <= Nmax; ++i )
            ciur[i] = i - 1;

    for ( int i = 2; i <= Nmax; ++i )
    {
            for ( int j = i << 1; j <= Nmax; j += i )
                    ciur[j] -= ciur[i];
    }
}

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

    gen();

    f >> n;

    for ( ; n; n-- )
    {
        f >> nr;
        g << ciur[nr]*2*nr*1LL << "\n";
    }

    f.close();
    g.close();

    return 0;
}