280603960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{607}}^1$

素因数の和:765

約数の個数: 128

約数和(自身を含む): 784465920

約数和(自身を除く): 503861960

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 127, 130, 140, 182, 254, 260, 280, 364, 455, 508, 520, 607, 635, 728, 889, 910, 1016, 1214, 1270, 1651, 1778, 1820, 2428, 2540, 3035, 3302, 3556, 3640, 4249, 4445, 4856, 5080, 6070, 6604, 7112, 7891, 8255, 8498, 8890, 11557, 12140, 13208, 15782, 16510, 16996, 17780, 21245, 23114, 24280, 31564, 33020, 33992, 35560, 39455, 42490, 46228, 55237, 57785, 63128, 66040, 77089, 78910, 84980, 92456, 110474, 115570, 154178, 157820, 169960, 220948, 231140, 276185, 308356, 315640, 385445, 441896, 462280, 539623, 552370, 616712, 770890, 1002157, 1079246, 1104740, 1541780, 2004314, 2158492, 2209480, 2698115, 3083560, 4008628, 4316984, 5010785, 5396230, 7015099, 8017256, 10021570, 10792460, 14030198, 20043140, 21584920, 28060396, 35075495, 40086280, 56120792, 70150990, 140301980, 280603960]

約数ペア:

[(1, 280603960), (2, 140301980), (4, 70150990), (5, 56120792), (7, 40086280), (8, 35075495), (10, 28060396), (13, 21584920), (14, 20043140), (20, 14030198), (26, 10792460), (28, 10021570), (35, 8017256), (40, 7015099), (52, 5396230), (56, 5010785), (65, 4316984), (70, 4008628), (91, 3083560), (104, 2698115), (127, 2209480), (130, 2158492), (140, 2004314), (182, 1541780), (254, 1104740), (260, 1079246), (280, 1002157), (364, 770890), (455, 616712), (508, 552370), (520, 539623), (607, 462280), (635, 441896), (728, 385445), (889, 315640), (910, 308356), (1016, 276185), (1214, 231140), (1270, 220948), (1651, 169960), (1778, 157820), (1820, 154178), (2428, 115570), (2540, 110474), (3035, 92456), (3302, 84980), (3556, 78910), (3640, 77089), (4249, 66040), (4445, 63128), (4856, 57785), (5080, 55237), (6070, 46228), (6604, 42490), (7112, 39455), (7891, 35560), (8255, 33992), (8498, 33020), (8890, 31564), (11557, 24280), (12140, 23114), (13208, 21245), (15782, 17780), (16510, 16996)]