138857260

素因数分解:

$2^2\times 5^1\times {\mathrm{1579}}^1\times {\mathrm{4397}}^1$

素因数の和:5985

約数の個数: 24

約数和(自身を含む): 291851280

約数和(自身を除く): 152994020

約数列:

[1, 2, 4, 5, 10, 20, 1579, 3158, 4397, 6316, 7895, 8794, 15790, 17588, 21985, 31580, 43970, 87940, 6942863, 13885726, 27771452, 34714315, 69428630, 138857260]

約数ペア:

[(1, 138857260), (2, 69428630), (4, 34714315), (5, 27771452), (10, 13885726), (20, 6942863), (1579, 87940), (3158, 43970), (4397, 31580), (6316, 21985), (7895, 17588), (8794, 15790)]