647707970

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{101681}}^1$

素因数の和:101715

約数の個数: 48

約数和(自身を含む): 1460560248

約数和(自身を除く): 812852278

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 455, 490, 637, 910, 1274, 3185, 6370, 101681, 203362, 508405, 711767, 1016810, 1321853, 1423534, 2643706, 3558835, 4982369, 6609265, 7117670, 9252971, 9964738, 13218530, 18505942, 24911845, 46264855, 49823690, 64770797, 92529710, 129541594, 323853985, 647707970]

約数ペア:

[(1, 647707970), (2, 323853985), (5, 129541594), (7, 92529710), (10, 64770797), (13, 49823690), (14, 46264855), (26, 24911845), (35, 18505942), (49, 13218530), (65, 9964738), (70, 9252971), (91, 7117670), (98, 6609265), (130, 4982369), (182, 3558835), (245, 2643706), (455, 1423534), (490, 1321853), (637, 1016810), (910, 711767), (1274, 508405), (3185, 203362), (6370, 101681)]