20218220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3169}}^1$

素因数の和:3218

約数の個数: 48

約数和(自身を含む): 47930400

約数和(自身を除く): 27712180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 145, 220, 290, 319, 580, 638, 1276, 1595, 3169, 3190, 6338, 6380, 12676, 15845, 31690, 34859, 63380, 69718, 91901, 139436, 174295, 183802, 348590, 367604, 459505, 697180, 919010, 1010911, 1838020, 2021822, 4043644, 5054555, 10109110, 20218220]

約数ペア:

[(1, 20218220), (2, 10109110), (4, 5054555), (5, 4043644), (10, 2021822), (11, 1838020), (20, 1010911), (22, 919010), (29, 697180), (44, 459505), (55, 367604), (58, 348590), (110, 183802), (116, 174295), (145, 139436), (220, 91901), (290, 69718), (319, 63380), (580, 34859), (638, 31690), (1276, 15845), (1595, 12676), (3169, 6380), (3190, 6338)]