{"trustable":true,"sections":[{"title":"","value":{"format":"HTML","content":"Your task in this problem is to determine the number of divisors of \u003ci\u003eC\u003csub\u003en\u003c/sub\u003e\u003cspan style\u003d\"margin-left: -0.7ex\"\u003e\u003csup\u003ek\u003c/sup\u003e\u003c/span\u003e\u003c/i\u003e. Just for fun -- or do you need any special reason for such a useful computation? "}},{"title":"Input","value":{"format":"HTML","content":"The input consists of several instances. Each instance consists of a single line containing two integers n and k (0 ≤ k ≤ n ≤ 431), separated by a single space. "}},{"title":"Output","value":{"format":"HTML","content":"For each instance, output a line containing exactly one integer -- the number of distinct divisors of \u003ci\u003eC\u003csub\u003en\u003c/sub\u003e\u003cspan style\u003d\"margin-left: -0.7ex\"\u003e\u003csup\u003ek\u003c/sup\u003e\u003c/span\u003e\u003c/i\u003e. For the input instances, this number does not exceed 2\u003csup\u003e63\u003c/sup\u003e - 1. "}},{"title":"Sample","value":{"format":"HTML","content":"\u003ctable class\u003d\u0027vjudge_sample\u0027\u003e\n\u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eInput\u003c/th\u003e\n \u003cth\u003eOutput\u003c/th\u003e\n \u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cpre\u003e5 1\r\n6 3\r\n10 4\u003c/pre\u003e\u003c/td\u003e\n \u003ctd\u003e\u003cpre\u003e2\r\n6\r\n16\u003c/pre\u003e\u003c/td\u003e\n \u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\n"}}]}