20210387740

素因数分解:

$2^2\times 5^1\times {\mathrm{13781}}^1\times {\mathrm{73327}}^1$

素因数の和:87117

約数の個数: 24

約数和(自身を含む): 42445472832

約数和(自身を除く): 22235085092

約数列:

[1, 2, 4, 5, 10, 20, 13781, 27562, 55124, 68905, 73327, 137810, 146654, 275620, 293308, 366635, 733270, 1466540, 1010519387, 2021038774, 4042077548, 5052596935, 10105193870, 20210387740]

約数ペア:

[(1, 20210387740), (2, 10105193870), (4, 5052596935), (5, 4042077548), (10, 2021038774), (20, 1010519387), (13781, 1466540), (27562, 733270), (55124, 366635), (68905, 293308), (73327, 275620), (137810, 146654)]