68415940

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{6967}}^1$

素因数の和:7467

約数の個数: 24

約数和(自身を含む): 143986752

約数和(自身を除く): 75570812

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 6967, 9820, 13934, 27868, 34835, 69670, 139340, 3420797, 6841594, 13683188, 17103985, 34207970, 68415940]

約数ペア:

[(1, 68415940), (2, 34207970), (4, 17103985), (5, 13683188), (10, 6841594), (20, 3420797), (491, 139340), (982, 69670), (1964, 34835), (2455, 27868), (4910, 13934), (6967, 9820)]