81111056

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{389957}}^1$

素因数の和:389978

約数の個数: 20

約数和(自身を含む): 169241772

約数和(自身を除く): 88130716

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 389957, 779914, 1559828, 3119656, 5069441, 6239312, 10138882, 20277764, 40555528, 81111056]

約数ペア:

[(1, 81111056), (2, 40555528), (4, 20277764), (8, 10138882), (13, 6239312), (16, 5069441), (26, 3119656), (52, 1559828), (104, 779914), (208, 389957)]