M = 10000000
t = int(input())
e = [i for i in range(M + 1)]
for i in range(2, M + 1):
    if e[i] == i:
        for j in range(i, M + 1, i):
            e[j] = e[j] // i * (i - 1)
for i in range(M):
    e[i + 1] += e[i]
for _ in range(t):
    n = int(input())
    print(n * (n - 1) - e[n] + 1)