31889780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{122653}}^1$

素因数の和:122675

約数の個数: 24

約数和(自身を含む): 72120552

約数和(自身を除く): 40230772

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 122653, 245306, 490612, 613265, 1226530, 1594489, 2453060, 3188978, 6377956, 7972445, 15944890, 31889780]

約数ペア:

[(1, 31889780), (2, 15944890), (4, 7972445), (5, 6377956), (10, 3188978), (13, 2453060), (20, 1594489), (26, 1226530), (52, 613265), (65, 490612), (130, 245306), (260, 122653)]