20390872

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{43201}}^1$

素因数の和:43266

約数の個数: 16

約数和(自身を含む): 38881800

約数和(自身を除く): 18490928

約数列:

[1, 2, 4, 8, 59, 118, 236, 472, 43201, 86402, 172804, 345608, 2548859, 5097718, 10195436, 20390872]

約数ペア:

[(1, 20390872), (2, 10195436), (4, 5097718), (8, 2548859), (59, 345608), (118, 172804), (236, 86402), (472, 43201)]