8828894020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1\times {\mathrm{34351}}^1$

素因数の和:34612

約数の個数: 48

約数和(自身を含む): 18906241536

約数和(自身を除く): 10077347516

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 181, 284, 355, 362, 710, 724, 905, 1420, 1810, 3620, 12851, 25702, 34351, 51404, 64255, 68702, 128510, 137404, 171755, 257020, 343510, 687020, 2438921, 4877842, 6217531, 9755684, 12194605, 12435062, 24389210, 24870124, 31087655, 48778420, 62175310, 124350620, 441444701, 882889402, 1765778804, 2207223505, 4414447010, 8828894020]

約数ペア:

[(1, 8828894020), (2, 4414447010), (4, 2207223505), (5, 1765778804), (10, 882889402), (20, 441444701), (71, 124350620), (142, 62175310), (181, 48778420), (284, 31087655), (355, 24870124), (362, 24389210), (710, 12435062), (724, 12194605), (905, 9755684), (1420, 6217531), (1810, 4877842), (3620, 2438921), (12851, 687020), (25702, 343510), (34351, 257020), (51404, 171755), (64255, 137404), (68702, 128510)]