20303760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2729}}^1$

素因数の和:2776

約数の個数: 80

約数和(自身を含む): 64995840

約数和(自身を除く): 44692080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 2729, 3720, 5458, 7440, 8187, 10916, 13645, 16374, 21832, 27290, 32748, 40935, 43664, 54580, 65496, 81870, 84599, 109160, 130992, 163740, 169198, 218320, 253797, 327480, 338396, 422995, 507594, 654960, 676792, 845990, 1015188, 1268985, 1353584, 1691980, 2030376, 2537970, 3383960, 4060752, 5075940, 6767920, 10151880, 20303760]

約数ペア:

[(1, 20303760), (2, 10151880), (3, 6767920), (4, 5075940), (5, 4060752), (6, 3383960), (8, 2537970), (10, 2030376), (12, 1691980), (15, 1353584), (16, 1268985), (20, 1015188), (24, 845990), (30, 676792), (31, 654960), (40, 507594), (48, 422995), (60, 338396), (62, 327480), (80, 253797), (93, 218320), (120, 169198), (124, 163740), (155, 130992), (186, 109160), (240, 84599), (248, 81870), (310, 65496), (372, 54580), (465, 43664), (496, 40935), (620, 32748), (744, 27290), (930, 21832), (1240, 16374), (1488, 13645), (1860, 10916), (2480, 8187), (2729, 7440), (3720, 5458)]