31912660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{122741}}^1$

素因数の和:122763

約数の個数: 24

約数和(自身を含む): 72172296

約数和(自身を除く): 40259636

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 122741, 245482, 490964, 613705, 1227410, 1595633, 2454820, 3191266, 6382532, 7978165, 15956330, 31912660]

約数ペア:

[(1, 31912660), (2, 15956330), (4, 7978165), (5, 6382532), (10, 3191266), (13, 2454820), (20, 1595633), (26, 1227410), (52, 613705), (65, 490964), (130, 245482), (260, 122741)]