31889260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{122651}}^1$

素因数の和:122673

約数の個数: 24

約数和(自身を含む): 72119376

約数和(自身を除く): 40230116

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 122651, 245302, 490604, 613255, 1226510, 1594463, 2453020, 3188926, 6377852, 7972315, 15944630, 31889260]

約数ペア:

[(1, 31889260), (2, 15944630), (4, 7972315), (5, 6377852), (10, 3188926), (13, 2453020), (20, 1594463), (26, 1226510), (52, 613255), (65, 490604), (130, 245302), (260, 122651)]