8117008180

素因数分解:

$2^2\times 5^1\times {\mathrm{405850409}}^1$

素因数の和:405850418

約数の個数: 12

約数和(自身を含む): 17045717220

約数和(自身を除く): 8928709040

約数列:

[1, 2, 4, 5, 10, 20, 405850409, 811700818, 1623401636, 2029252045, 4058504090, 8117008180]

約数ペア:

[(1, 8117008180), (2, 4058504090), (4, 2029252045), (5, 1623401636), (10, 811700818), (20, 405850409)]