19337980

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{3109}}^1$

素因数の和:3429

約数の個数: 24

約数和(自身を含む): 40753440

約数和(自身を除く): 21415460

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3109, 3110, 6218, 6220, 12436, 15545, 31090, 62180, 966899, 1933798, 3867596, 4834495, 9668990, 19337980]

約数ペア:

[(1, 19337980), (2, 9668990), (4, 4834495), (5, 3867596), (10, 1933798), (20, 966899), (311, 62180), (622, 31090), (1244, 15545), (1555, 12436), (3109, 6220), (3110, 6218)]