81357360

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{613}}^1$

素因数の和:715

約数の個数: 160

約数和(自身を含む): 292362240

約数和(自身を除く): 211004880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 79, 80, 84, 105, 112, 120, 140, 158, 168, 210, 237, 240, 280, 316, 336, 395, 420, 474, 553, 560, 613, 632, 790, 840, 948, 1106, 1185, 1226, 1264, 1580, 1659, 1680, 1839, 1896, 2212, 2370, 2452, 2765, 3065, 3160, 3318, 3678, 3792, 4291, 4424, 4740, 4904, 5530, 6130, 6320, 6636, 7356, 8295, 8582, 8848, 9195, 9480, 9808, 11060, 12260, 12873, 13272, 14712, 16590, 17164, 18390, 18960, 21455, 22120, 24520, 25746, 26544, 29424, 33180, 34328, 36780, 42910, 44240, 48427, 49040, 51492, 64365, 66360, 68656, 73560, 85820, 96854, 102984, 128730, 132720, 145281, 147120, 171640, 193708, 205968, 242135, 257460, 290562, 338989, 343280, 387416, 484270, 514920, 581124, 677978, 726405, 774832, 968540, 1016967, 1029840, 1162248, 1355956, 1452810, 1694945, 1937080, 2033934, 2324496, 2711912, 2905620, 3389890, 3874160, 4067868, 5084835, 5423824, 5811240, 6779780, 8135736, 10169670, 11622480, 13559560, 16271472, 20339340, 27119120, 40678680, 81357360]

約数ペア:

[(1, 81357360), (2, 40678680), (3, 27119120), (4, 20339340), (5, 16271472), (6, 13559560), (7, 11622480), (8, 10169670), (10, 8135736), (12, 6779780), (14, 5811240), (15, 5423824), (16, 5084835), (20, 4067868), (21, 3874160), (24, 3389890), (28, 2905620), (30, 2711912), (35, 2324496), (40, 2033934), (42, 1937080), (48, 1694945), (56, 1452810), (60, 1355956), (70, 1162248), (79, 1029840), (80, 1016967), (84, 968540), (105, 774832), (112, 726405), (120, 677978), (140, 581124), (158, 514920), (168, 484270), (210, 387416), (237, 343280), (240, 338989), (280, 290562), (316, 257460), (336, 242135), (395, 205968), (420, 193708), (474, 171640), (553, 147120), (560, 145281), (613, 132720), (632, 128730), (790, 102984), (840, 96854), (948, 85820), (1106, 73560), (1185, 68656), (1226, 66360), (1264, 64365), (1580, 51492), (1659, 49040), (1680, 48427), (1839, 44240), (1896, 42910), (2212, 36780), (2370, 34328), (2452, 33180), (2765, 29424), (3065, 26544), (3160, 25746), (3318, 24520), (3678, 22120), (3792, 21455), (4291, 18960), (4424, 18390), (4740, 17164), (4904, 16590), (5530, 14712), (6130, 13272), (6320, 12873), (6636, 12260), (7356, 11060), (8295, 9808), (8582, 9480), (8848, 9195)]