81591120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{379}}^1$

素因数の和:434

約数の個数: 240

約数和(自身を含む): 308730240

約数和(自身を除く): 227139120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 23, 24, 26, 30, 36, 39, 40, 45, 46, 48, 52, 60, 65, 69, 72, 78, 80, 90, 92, 104, 115, 117, 120, 130, 138, 144, 156, 180, 184, 195, 207, 208, 230, 234, 240, 260, 276, 299, 312, 345, 360, 368, 379, 390, 414, 460, 468, 520, 552, 585, 598, 624, 690, 720, 758, 780, 828, 897, 920, 936, 1035, 1040, 1104, 1137, 1170, 1196, 1380, 1495, 1516, 1560, 1656, 1794, 1840, 1872, 1895, 2070, 2274, 2340, 2392, 2691, 2760, 2990, 3032, 3120, 3312, 3411, 3588, 3790, 4140, 4485, 4548, 4680, 4784, 4927, 5382, 5520, 5685, 5980, 6064, 6822, 7176, 7580, 8280, 8717, 8970, 9096, 9360, 9854, 10764, 11370, 11960, 13455, 13644, 14352, 14781, 15160, 16560, 17055, 17434, 17940, 18192, 19708, 21528, 22740, 23920, 24635, 26151, 26910, 27288, 29562, 30320, 34110, 34868, 35880, 39416, 43056, 43585, 44343, 45480, 49270, 52302, 53820, 54576, 59124, 68220, 69736, 71760, 73905, 78453, 78832, 87170, 88686, 90960, 98540, 104604, 107640, 113321, 118248, 130755, 136440, 139472, 147810, 156906, 174340, 177372, 197080, 209208, 215280, 221715, 226642, 236496, 261510, 272880, 295620, 313812, 339963, 348680, 354744, 392265, 394160, 418416, 443430, 453284, 523020, 566605, 591240, 627624, 679926, 697360, 709488, 784530, 886860, 906568, 1019889, 1046040, 1133210, 1182480, 1255248, 1359852, 1569060, 1699815, 1773720, 1813136, 2039778, 2092080, 2266420, 2719704, 3138120, 3399630, 3547440, 4079556, 4532840, 5099445, 5439408, 6276240, 6799260, 8159112, 9065680, 10198890, 13598520, 16318224, 20397780, 27197040, 40795560, 81591120]

約数ペア:

[(1, 81591120), (2, 40795560), (3, 27197040), (4, 20397780), (5, 16318224), (6, 13598520), (8, 10198890), (9, 9065680), (10, 8159112), (12, 6799260), (13, 6276240), (15, 5439408), (16, 5099445), (18, 4532840), (20, 4079556), (23, 3547440), (24, 3399630), (26, 3138120), (30, 2719704), (36, 2266420), (39, 2092080), (40, 2039778), (45, 1813136), (46, 1773720), (48, 1699815), (52, 1569060), (60, 1359852), (65, 1255248), (69, 1182480), (72, 1133210), (78, 1046040), (80, 1019889), (90, 906568), (92, 886860), (104, 784530), (115, 709488), (117, 697360), (120, 679926), (130, 627624), (138, 591240), (144, 566605), (156, 523020), (180, 453284), (184, 443430), (195, 418416), (207, 394160), (208, 392265), (230, 354744), (234, 348680), (240, 339963), (260, 313812), (276, 295620), (299, 272880), (312, 261510), (345, 236496), (360, 226642), (368, 221715), (379, 215280), (390, 209208), (414, 197080), (460, 177372), (468, 174340), (520, 156906), (552, 147810), (585, 139472), (598, 136440), (624, 130755), (690, 118248), (720, 113321), (758, 107640), (780, 104604), (828, 98540), (897, 90960), (920, 88686), (936, 87170), (1035, 78832), (1040, 78453), (1104, 73905), (1137, 71760), (1170, 69736), (1196, 68220), (1380, 59124), (1495, 54576), (1516, 53820), (1560, 52302), (1656, 49270), (1794, 45480), (1840, 44343), (1872, 43585), (1895, 43056), (2070, 39416), (2274, 35880), (2340, 34868), (2392, 34110), (2691, 30320), (2760, 29562), (2990, 27288), (3032, 26910), (3120, 26151), (3312, 24635), (3411, 23920), (3588, 22740), (3790, 21528), (4140, 19708), (4485, 18192), (4548, 17940), (4680, 17434), (4784, 17055), (4927, 16560), (5382, 15160), (5520, 14781), (5685, 14352), (5980, 13644), (6064, 13455), (6822, 11960), (7176, 11370), (7580, 10764), (8280, 9854), (8717, 9360), (8970, 9096)]