20189619080

素因数分解:

$2^3\times 5^1\times {\mathrm{504740477}}^1$

素因数の和:504740488

約数の個数: 16

約数和(自身を含む): 45426643020

約数和(自身を除く): 25237023940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504740477, 1009480954, 2018961908, 2523702385, 4037923816, 5047404770, 10094809540, 20189619080]

約数ペア:

[(1, 20189619080), (2, 10094809540), (4, 5047404770), (5, 4037923816), (8, 2523702385), (10, 2018961908), (20, 1009480954), (40, 504740477)]