31311020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{120427}}^1$

素因数の和:120449

約数の個数: 24

約数和(自身を含む): 70811664

約数和(自身を除く): 39500644

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 120427, 240854, 481708, 602135, 1204270, 1565551, 2408540, 3131102, 6262204, 7827755, 15655510, 31311020]

約数ペア:

[(1, 31311020), (2, 15655510), (4, 7827755), (5, 6262204), (10, 3131102), (13, 2408540), (20, 1565551), (26, 1204270), (52, 602135), (65, 481708), (130, 240854), (260, 120427)]