18337820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{15031}}^1$

素因数の和:15101

約数の個数: 24

約数和(自身を含む): 39143328

約数和(自身を除く): 20805508

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 15031, 30062, 60124, 75155, 150310, 300620, 916891, 1833782, 3667564, 4584455, 9168910, 18337820]

約数ペア:

[(1, 18337820), (2, 9168910), (4, 4584455), (5, 3667564), (10, 1833782), (20, 916891), (61, 300620), (122, 150310), (244, 75155), (305, 60124), (610, 30062), (1220, 15031)]