20189080

素因数分解:

$2^3\times 5^1\times {\mathrm{504727}}^1$

素因数の和:504738

約数の個数: 16

約数和(自身を含む): 45425520

約数和(自身を除く): 25236440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504727, 1009454, 2018908, 2523635, 4037816, 5047270, 10094540, 20189080]

約数ペア:

[(1, 20189080), (2, 10094540), (4, 5047270), (5, 4037816), (8, 2523635), (10, 2018908), (20, 1009454), (40, 504727)]