#DIVFACT4. Divisors of factorial (extreme)
Divisors of factorial (extreme)
Find the number of divisors of N! (factorial) very fast !
Input
The first line contains an integer T, the number of test cases.
Each line of the next T lines contains two integers N and M.
Output
For each line, output a single line containing the number of divisors of N! modulo M.
Example
Input
3 10 989 10000 999989 10000000000 999999999989
Output
270 616797 40946947081
Constraints
1 ≤ T ≤ 104
0 ≤ N ≤ 1011
1 ≤ M ≤ 1012
Information
There are 5 input files.
- Input #1: T ≤ 104, N ≤ 104, TL = 1s
- Input #2: T ≤ 5, N ≤ 108, TL = 20s
- Input #3: T ≤ 5, N ≤ 109, TL = 20s
- Input #4: T ≤ 5, N ≤ 1010, TL = 20s
- Input #5: T ≤ 5, N ≤ 1011, TL = 20s
My total running time is 3.14 sec. (C++)
Credits
- ivar.raknahs - the original problem (DIVFACT) author
- Francky - the author of DIVFACT2 and DIVFACT3