20159740

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{14197}}^1$

素因数の和:14277

約数の個数: 24

約数和(自身を含む): 42934752

約数和(自身を除く): 22775012

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 14197, 28394, 56788, 70985, 141970, 283940, 1007987, 2015974, 4031948, 5039935, 10079870, 20159740]

約数ペア:

[(1, 20159740), (2, 10079870), (4, 5039935), (5, 4031948), (10, 2015974), (20, 1007987), (71, 283940), (142, 141970), (284, 70985), (355, 56788), (710, 28394), (1420, 14197)]