20172568840

素因数分解:

$2^3\times 5^1\times {\mathrm{504314221}}^1$

素因数の和:504314232

約数の個数: 16

約数和(自身を含む): 45388279980

約数和(自身を除く): 25215711140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504314221, 1008628442, 2017256884, 2521571105, 4034513768, 5043142210, 10086284420, 20172568840]

約数ペア:

[(1, 20172568840), (2, 10086284420), (4, 5043142210), (5, 4034513768), (8, 2521571105), (10, 2017256884), (20, 1008628442), (40, 504314221)]