38406020

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{3911}}^1$

素因数の和:4411

約数の個数: 24

約数和(自身を含む): 80837568

約数和(自身を除く): 42431548

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 3911, 4910, 7822, 9820, 15644, 19555, 39110, 78220, 1920301, 3840602, 7681204, 9601505, 19203010, 38406020]

約数ペア:

[(1, 38406020), (2, 19203010), (4, 9601505), (5, 7681204), (10, 3840602), (20, 1920301), (491, 78220), (982, 39110), (1964, 19555), (2455, 15644), (3911, 9820), (4910, 7822)]