256422180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{8599}}^1$

素因数の和:8689

約数の個数: 96

約数和(自身を含む): 832204800

約数和(自身を除く): 575782620

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 71, 84, 105, 140, 142, 210, 213, 284, 355, 420, 426, 497, 710, 852, 994, 1065, 1420, 1491, 1988, 2130, 2485, 2982, 4260, 4970, 5964, 7455, 8599, 9940, 14910, 17198, 25797, 29820, 34396, 42995, 51594, 60193, 85990, 103188, 120386, 128985, 171980, 180579, 240772, 257970, 300965, 361158, 515940, 601930, 610529, 722316, 902895, 1203860, 1221058, 1805790, 1831587, 2442116, 3052645, 3611580, 3663174, 4273703, 6105290, 7326348, 8547406, 9157935, 12210580, 12821109, 17094812, 18315870, 21368515, 25642218, 36631740, 42737030, 51284436, 64105545, 85474060, 128211090, 256422180]

約数ペア:

[(1, 256422180), (2, 128211090), (3, 85474060), (4, 64105545), (5, 51284436), (6, 42737030), (7, 36631740), (10, 25642218), (12, 21368515), (14, 18315870), (15, 17094812), (20, 12821109), (21, 12210580), (28, 9157935), (30, 8547406), (35, 7326348), (42, 6105290), (60, 4273703), (70, 3663174), (71, 3611580), (84, 3052645), (105, 2442116), (140, 1831587), (142, 1805790), (210, 1221058), (213, 1203860), (284, 902895), (355, 722316), (420, 610529), (426, 601930), (497, 515940), (710, 361158), (852, 300965), (994, 257970), (1065, 240772), (1420, 180579), (1491, 171980), (1988, 128985), (2130, 120386), (2485, 103188), (2982, 85990), (4260, 60193), (4970, 51594), (5964, 42995), (7455, 34396), (8599, 29820), (9940, 25797), (14910, 17198)]