81695744

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2$

素因数の和:88

約数の個数: 132

約数和(自身を含む): 196536564

約数和(自身を除く): 114840820

約数列:

[1, 2, 4, 8, 13, 16, 17, 19, 26, 32, 34, 38, 52, 64, 68, 76, 104, 128, 136, 152, 208, 221, 247, 256, 272, 304, 323, 361, 416, 442, 494, 512, 544, 608, 646, 722, 832, 884, 988, 1024, 1088, 1216, 1292, 1444, 1664, 1768, 1976, 2176, 2432, 2584, 2888, 3328, 3536, 3952, 4199, 4352, 4693, 4864, 5168, 5776, 6137, 6656, 7072, 7904, 8398, 8704, 9386, 9728, 10336, 11552, 12274, 13312, 14144, 15808, 16796, 17408, 18772, 19456, 20672, 23104, 24548, 28288, 31616, 33592, 37544, 41344, 46208, 49096, 56576, 63232, 67184, 75088, 79781, 82688, 92416, 98192, 113152, 126464, 134368, 150176, 159562, 165376, 184832, 196384, 226304, 252928, 268736, 300352, 319124, 330752, 369664, 392768, 537472, 600704, 638248, 785536, 1074944, 1201408, 1276496, 1571072, 2149888, 2402816, 2552992, 3142144, 4299776, 4805632, 5105984, 6284288, 10211968, 20423936, 40847872, 81695744]

約数ペア:

[(1, 81695744), (2, 40847872), (4, 20423936), (8, 10211968), (13, 6284288), (16, 5105984), (17, 4805632), (19, 4299776), (26, 3142144), (32, 2552992), (34, 2402816), (38, 2149888), (52, 1571072), (64, 1276496), (68, 1201408), (76, 1074944), (104, 785536), (128, 638248), (136, 600704), (152, 537472), (208, 392768), (221, 369664), (247, 330752), (256, 319124), (272, 300352), (304, 268736), (323, 252928), (361, 226304), (416, 196384), (442, 184832), (494, 165376), (512, 159562), (544, 150176), (608, 134368), (646, 126464), (722, 113152), (832, 98192), (884, 92416), (988, 82688), (1024, 79781), (1088, 75088), (1216, 67184), (1292, 63232), (1444, 56576), (1664, 49096), (1768, 46208), (1976, 41344), (2176, 37544), (2432, 33592), (2584, 31616), (2888, 28288), (3328, 24548), (3536, 23104), (3952, 20672), (4199, 19456), (4352, 18772), (4693, 17408), (4864, 16796), (5168, 15808), (5776, 14144), (6137, 13312), (6656, 12274), (7072, 11552), (7904, 10336), (8398, 9728), (8704, 9386)]