81640108

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{1855457}}^1$

素因数の和:1855472

約数の個数: 12

約数和(自身を含む): 155858472

約数和(自身を除く): 74218364

約数列:

[1, 2, 4, 11, 22, 44, 1855457, 3710914, 7421828, 20410027, 40820054, 81640108]

約数ペア:

[(1, 81640108), (2, 40820054), (4, 20410027), (11, 7421828), (22, 3710914), (44, 1855457)]