20207780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{34841}}^1$

素因数の和:34879

約数の個数: 24

約数和(自身を含む): 43900920

約数和(自身を除く): 23693140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 34841, 69682, 139364, 174205, 348410, 696820, 1010389, 2020778, 4041556, 5051945, 10103890, 20207780]

約数ペア:

[(1, 20207780), (2, 10103890), (4, 5051945), (5, 4041556), (10, 2020778), (20, 1010389), (29, 696820), (58, 348410), (116, 174205), (145, 139364), (290, 69682), (580, 34841)]