20887540

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{36013}}^1$

素因数の和:36051

約数の個数: 24

約数和(自身を含む): 45377640

約数和(自身を除く): 24490100

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 36013, 72026, 144052, 180065, 360130, 720260, 1044377, 2088754, 4177508, 5221885, 10443770, 20887540]

約数ペア:

[(1, 20887540), (2, 10443770), (4, 5221885), (5, 4177508), (10, 2088754), (20, 1044377), (29, 720260), (58, 360130), (116, 180065), (145, 144052), (290, 72026), (580, 36013)]