257341630

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{569}}^1$

素因数の和:674

約数の個数: 96

約数和(自身を含む): 589498560

約数和(自身を除く): 332156930

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 71, 91, 98, 130, 142, 182, 245, 355, 455, 490, 497, 569, 637, 710, 910, 923, 994, 1138, 1274, 1846, 2485, 2845, 3185, 3479, 3983, 4615, 4970, 5690, 6370, 6461, 6958, 7397, 7966, 9230, 12922, 14794, 17395, 19915, 27881, 32305, 34790, 36985, 39830, 40399, 45227, 51779, 55762, 64610, 73970, 80798, 90454, 103558, 139405, 201995, 226135, 258895, 278810, 282793, 362453, 403990, 452270, 517790, 525187, 565586, 724906, 1050374, 1413965, 1812265, 1979551, 2625935, 2827930, 3624530, 3676309, 3959102, 5251870, 7352618, 9897755, 18381545, 19795510, 25734163, 36763090, 51468326, 128670815, 257341630]

約数ペア:

[(1, 257341630), (2, 128670815), (5, 51468326), (7, 36763090), (10, 25734163), (13, 19795510), (14, 18381545), (26, 9897755), (35, 7352618), (49, 5251870), (65, 3959102), (70, 3676309), (71, 3624530), (91, 2827930), (98, 2625935), (130, 1979551), (142, 1812265), (182, 1413965), (245, 1050374), (355, 724906), (455, 565586), (490, 525187), (497, 517790), (569, 452270), (637, 403990), (710, 362453), (910, 282793), (923, 278810), (994, 258895), (1138, 226135), (1274, 201995), (1846, 139405), (2485, 103558), (2845, 90454), (3185, 80798), (3479, 73970), (3983, 64610), (4615, 55762), (4970, 51779), (5690, 45227), (6370, 40399), (6461, 39830), (6958, 36985), (7397, 34790), (7966, 32305), (9230, 27881), (12922, 19915), (14794, 17395)]