31499260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{121151}}^1$

素因数の和:121173

約数の個数: 24

約数和(自身を含む): 71237376

約数和(自身を除く): 39738116

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 121151, 242302, 484604, 605755, 1211510, 1574963, 2423020, 3149926, 6299852, 7874815, 15749630, 31499260]

約数ペア:

[(1, 31499260), (2, 15749630), (4, 7874815), (5, 6299852), (10, 3149926), (13, 2423020), (20, 1574963), (26, 1211510), (52, 605755), (65, 484604), (130, 242302), (260, 121151)]