Time Limit: 5000 ms Case Time Limit: 5000 ms Memory Limit: 262144 KB
Submit: 4 Accepted: 0
This problem will be judged on SPOJ. Original ID: LCMSUM.
[Prev][Next]
Given n, calculate the sum LCM(1,n) + LCM(2,n) + .. + LCM(n,n), where LCM(i,n) denotes the Least Common Multiple of the integers i and n.
Input
The first line contains T the number of test cases. Each of the next T lines contain an integer n.
Output
Output T lines, one for each test case, containing the required sum.
Example
Sample Input :
3
1
2
5
Sample Output :
4
55
Constraints
1 <= T <= 300000
1 <= n <= 1000000