81227018

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1\times {\mathrm{1559}}^1$

素因数の和:1909

約数の個数: 16

約数和(自身を含む): 123552000

約数和(自身を除く): 42324982

約数列:

[1, 2, 109, 218, 239, 478, 1559, 3118, 26051, 52102, 169931, 339862, 372601, 745202, 40613509, 81227018]

約数ペア:

[(1, 81227018), (2, 40613509), (109, 745202), (218, 372601), (239, 339862), (478, 169931), (1559, 52102), (3118, 26051)]