20513020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{93241}}^1$

素因数の和:93261

約数の個数: 24

約数和(自身を含む): 46993968

約数和(自身を除く): 26480948

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 93241, 186482, 372964, 466205, 932410, 1025651, 1864820, 2051302, 4102604, 5128255, 10256510, 20513020]

約数ペア:

[(1, 20513020), (2, 10256510), (4, 5128255), (5, 4102604), (10, 2051302), (11, 1864820), (20, 1025651), (22, 932410), (44, 466205), (55, 372964), (110, 186482), (220, 93241)]