81662880

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{569}}^1$

素因数の和:623

約数の個数: 192

約数和(自身を含む): 289578240

約数和(自身を除く): 207915360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 23, 24, 26, 30, 32, 39, 40, 46, 48, 52, 60, 65, 69, 78, 80, 92, 96, 104, 115, 120, 130, 138, 156, 160, 184, 195, 208, 230, 240, 260, 276, 299, 312, 345, 368, 390, 416, 460, 480, 520, 552, 569, 598, 624, 690, 736, 780, 897, 920, 1040, 1104, 1138, 1196, 1248, 1380, 1495, 1560, 1707, 1794, 1840, 2080, 2208, 2276, 2392, 2760, 2845, 2990, 3120, 3414, 3588, 3680, 4485, 4552, 4784, 5520, 5690, 5980, 6240, 6828, 7176, 7397, 8535, 8970, 9104, 9568, 11040, 11380, 11960, 13087, 13656, 14352, 14794, 17070, 17940, 18208, 22191, 22760, 23920, 26174, 27312, 28704, 29588, 34140, 35880, 36985, 39261, 44382, 45520, 47840, 52348, 54624, 59176, 65435, 68280, 71760, 73970, 78522, 88764, 91040, 104696, 110955, 118352, 130870, 136560, 143520, 147940, 157044, 170131, 177528, 196305, 209392, 221910, 236704, 261740, 273120, 295880, 314088, 340262, 355056, 392610, 418784, 443820, 510393, 523480, 591760, 628176, 680524, 710112, 785220, 850655, 887640, 1020786, 1046960, 1183520, 1256352, 1361048, 1570440, 1701310, 1775280, 2041572, 2093920, 2551965, 2722096, 3140880, 3402620, 3550560, 4083144, 5103930, 5444192, 6281760, 6805240, 8166288, 10207860, 13610480, 16332576, 20415720, 27220960, 40831440, 81662880]

約数ペア:

[(1, 81662880), (2, 40831440), (3, 27220960), (4, 20415720), (5, 16332576), (6, 13610480), (8, 10207860), (10, 8166288), (12, 6805240), (13, 6281760), (15, 5444192), (16, 5103930), (20, 4083144), (23, 3550560), (24, 3402620), (26, 3140880), (30, 2722096), (32, 2551965), (39, 2093920), (40, 2041572), (46, 1775280), (48, 1701310), (52, 1570440), (60, 1361048), (65, 1256352), (69, 1183520), (78, 1046960), (80, 1020786), (92, 887640), (96, 850655), (104, 785220), (115, 710112), (120, 680524), (130, 628176), (138, 591760), (156, 523480), (160, 510393), (184, 443820), (195, 418784), (208, 392610), (230, 355056), (240, 340262), (260, 314088), (276, 295880), (299, 273120), (312, 261740), (345, 236704), (368, 221910), (390, 209392), (416, 196305), (460, 177528), (480, 170131), (520, 157044), (552, 147940), (569, 143520), (598, 136560), (624, 130870), (690, 118352), (736, 110955), (780, 104696), (897, 91040), (920, 88764), (1040, 78522), (1104, 73970), (1138, 71760), (1196, 68280), (1248, 65435), (1380, 59176), (1495, 54624), (1560, 52348), (1707, 47840), (1794, 45520), (1840, 44382), (2080, 39261), (2208, 36985), (2276, 35880), (2392, 34140), (2760, 29588), (2845, 28704), (2990, 27312), (3120, 26174), (3414, 23920), (3588, 22760), (3680, 22191), (4485, 18208), (4552, 17940), (4784, 17070), (5520, 14794), (5690, 14352), (5980, 13656), (6240, 13087), (6828, 11960), (7176, 11380), (7397, 11040), (8535, 9568), (8970, 9104)]