31251740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{120199}}^1$

素因数の和:120221

約数の個数: 24

約数和(自身を含む): 70677600

約数和(自身を除く): 39425860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 120199, 240398, 480796, 600995, 1201990, 1562587, 2403980, 3125174, 6250348, 7812935, 15625870, 31251740]

約数ペア:

[(1, 31251740), (2, 15625870), (4, 7812935), (5, 6250348), (10, 3125174), (13, 2403980), (20, 1562587), (26, 1201990), (52, 600995), (65, 480796), (130, 240398), (260, 120199)]