39245840

素因数分解:

$2^4\times 5^1\times {\mathrm{490573}}^1$

素因数の和:490586

約数の個数: 20

約数和(自身を含む): 91246764

約数和(自身を除く): 52000924

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 490573, 981146, 1962292, 2452865, 3924584, 4905730, 7849168, 9811460, 19622920, 39245840]

約数ペア:

[(1, 39245840), (2, 19622920), (4, 9811460), (5, 7849168), (8, 4905730), (10, 3924584), (16, 2452865), (20, 1962292), (40, 981146), (80, 490573)]