20178562840

素因数分解:

$2^3\times 5^1\times {\mathrm{859}}^1\times {\mathrm{587269}}^1$

素因数の和:588139

約数の個数: 32

約数和(自身を含む): 45454698000

約数和(自身を除く): 25276135160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 859, 1718, 3436, 4295, 6872, 8590, 17180, 34360, 587269, 1174538, 2349076, 2936345, 4698152, 5872690, 11745380, 23490760, 504464071, 1008928142, 2017856284, 2522320355, 4035712568, 5044640710, 10089281420, 20178562840]

約数ペア:

[(1, 20178562840), (2, 10089281420), (4, 5044640710), (5, 4035712568), (8, 2522320355), (10, 2017856284), (20, 1008928142), (40, 504464071), (859, 23490760), (1718, 11745380), (3436, 5872690), (4295, 4698152), (6872, 2936345), (8590, 2349076), (17180, 1174538), (34360, 587269)]