19818052405

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{8011}}^1\times {\mathrm{8111}}^1$

素因数の和:16188

約数の個数: 16

約数和(自身を含む): 24177523968

約数和(自身を除く): 4359471563

約数列:

[1, 5, 61, 305, 8011, 8111, 40055, 40555, 488671, 494771, 2443355, 2473855, 64977221, 324886105, 3963610481, 19818052405]

約数ペア:

[(1, 19818052405), (5, 3963610481), (61, 324886105), (305, 64977221), (8011, 2473855), (8111, 2443355), (40055, 494771), (40555, 488671)]