388593220

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{80621}}^1$

素因数の和:80871

約数の個数: 24

約数和(自身を含む): 819442008

約数和(自身を除く): 430848788

約数列:

[1, 2, 4, 5, 10, 20, 241, 482, 964, 1205, 2410, 4820, 80621, 161242, 322484, 403105, 806210, 1612420, 19429661, 38859322, 77718644, 97148305, 194296610, 388593220]

約数ペア:

[(1, 388593220), (2, 194296610), (4, 97148305), (5, 77718644), (10, 38859322), (20, 19429661), (241, 1612420), (482, 806210), (964, 403105), (1205, 322484), (2410, 161242), (4820, 80621)]