81215040

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2729}}^1$

素因数の和:2780

約数の個数: 112

約数和(自身を含む): 266273280

約数和(自身を除く): 185058240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 155, 160, 186, 192, 240, 248, 310, 320, 372, 465, 480, 496, 620, 744, 930, 960, 992, 1240, 1488, 1860, 1984, 2480, 2729, 2976, 3720, 4960, 5458, 5952, 7440, 8187, 9920, 10916, 13645, 14880, 16374, 21832, 27290, 29760, 32748, 40935, 43664, 54580, 65496, 81870, 84599, 87328, 109160, 130992, 163740, 169198, 174656, 218320, 253797, 261984, 327480, 338396, 422995, 436640, 507594, 523968, 654960, 676792, 845990, 873280, 1015188, 1268985, 1309920, 1353584, 1691980, 2030376, 2537970, 2619840, 2707168, 3383960, 4060752, 5075940, 5414336, 6767920, 8121504, 10151880, 13535840, 16243008, 20303760, 27071680, 40607520, 81215040]

約数ペア:

[(1, 81215040), (2, 40607520), (3, 27071680), (4, 20303760), (5, 16243008), (6, 13535840), (8, 10151880), (10, 8121504), (12, 6767920), (15, 5414336), (16, 5075940), (20, 4060752), (24, 3383960), (30, 2707168), (31, 2619840), (32, 2537970), (40, 2030376), (48, 1691980), (60, 1353584), (62, 1309920), (64, 1268985), (80, 1015188), (93, 873280), (96, 845990), (120, 676792), (124, 654960), (155, 523968), (160, 507594), (186, 436640), (192, 422995), (240, 338396), (248, 327480), (310, 261984), (320, 253797), (372, 218320), (465, 174656), (480, 169198), (496, 163740), (620, 130992), (744, 109160), (930, 87328), (960, 84599), (992, 81870), (1240, 65496), (1488, 54580), (1860, 43664), (1984, 40935), (2480, 32748), (2729, 29760), (2976, 27290), (3720, 21832), (4960, 16374), (5458, 14880), (5952, 13645), (7440, 10916), (8187, 9920)]