81462420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1123}}^1$

素因数の和:1182

約数の個数: 144

約数和(自身を含む): 274939392

約数和(自身を除く): 193476972

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 31, 36, 39, 45, 52, 60, 62, 65, 78, 90, 93, 117, 124, 130, 155, 156, 180, 186, 195, 234, 260, 279, 310, 372, 390, 403, 465, 468, 558, 585, 620, 780, 806, 930, 1116, 1123, 1170, 1209, 1395, 1612, 1860, 2015, 2246, 2340, 2418, 2790, 3369, 3627, 4030, 4492, 4836, 5580, 5615, 6045, 6738, 7254, 8060, 10107, 11230, 12090, 13476, 14508, 14599, 16845, 18135, 20214, 22460, 24180, 29198, 33690, 34813, 36270, 40428, 43797, 50535, 58396, 67380, 69626, 72540, 72995, 87594, 101070, 104439, 131391, 139252, 145990, 174065, 175188, 202140, 208878, 218985, 262782, 291980, 313317, 348130, 417756, 437970, 452569, 522195, 525564, 626634, 656955, 696260, 875940, 905138, 1044390, 1253268, 1313910, 1357707, 1566585, 1810276, 2088780, 2262845, 2627820, 2715414, 3133170, 4073121, 4525690, 5430828, 6266340, 6788535, 8146242, 9051380, 13577070, 16292484, 20365605, 27154140, 40731210, 81462420]

約数ペア:

[(1, 81462420), (2, 40731210), (3, 27154140), (4, 20365605), (5, 16292484), (6, 13577070), (9, 9051380), (10, 8146242), (12, 6788535), (13, 6266340), (15, 5430828), (18, 4525690), (20, 4073121), (26, 3133170), (30, 2715414), (31, 2627820), (36, 2262845), (39, 2088780), (45, 1810276), (52, 1566585), (60, 1357707), (62, 1313910), (65, 1253268), (78, 1044390), (90, 905138), (93, 875940), (117, 696260), (124, 656955), (130, 626634), (155, 525564), (156, 522195), (180, 452569), (186, 437970), (195, 417756), (234, 348130), (260, 313317), (279, 291980), (310, 262782), (372, 218985), (390, 208878), (403, 202140), (465, 175188), (468, 174065), (558, 145990), (585, 139252), (620, 131391), (780, 104439), (806, 101070), (930, 87594), (1116, 72995), (1123, 72540), (1170, 69626), (1209, 67380), (1395, 58396), (1612, 50535), (1860, 43797), (2015, 40428), (2246, 36270), (2340, 34813), (2418, 33690), (2790, 29198), (3369, 24180), (3627, 22460), (4030, 20214), (4492, 18135), (4836, 16845), (5580, 14599), (5615, 14508), (6045, 13476), (6738, 12090), (7254, 11230), (8060, 10107)]