20892980

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{3359}}^1$

素因数の和:3679

約数の個数: 24

約数和(自身を含む): 44029440

約数和(自身を除く): 23136460

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3110, 3359, 6220, 6718, 13436, 16795, 33590, 67180, 1044649, 2089298, 4178596, 5223245, 10446490, 20892980]

約数ペア:

[(1, 20892980), (2, 10446490), (4, 5223245), (5, 4178596), (10, 2089298), (20, 1044649), (311, 67180), (622, 33590), (1244, 16795), (1555, 13436), (3110, 6718), (3359, 6220)]