| Author: | A. Baranov | Time limit: | 1 sec | |
| Input file: | input.txt | Memory limit: | 256 Mb | |
| Output file: | output.txt |
Your program must calculate total number of such pairs of integers (p, n) that p ≥ 1, n > 1 и A ≤ pn ≤ B.
Input file contains two integers A and B.
Output file must contain a single integer — number of pairs.
2 ≤ A ≤ B < 263
| No. | Input file (input.txt) |
Output file (output.txt) |
|---|---|---|
| 1 | |
|
| 2 | |
|