9889405

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2539}}^1$

素因数の和:2604

約数の個数: 16

約数和(自身を含む): 12801600

約数和(自身を除く): 2912195

約数列:

[1, 5, 19, 41, 95, 205, 779, 2539, 3895, 12695, 48241, 104099, 241205, 520495, 1977881, 9889405]

約数ペア:

[(1, 9889405), (5, 1977881), (19, 520495), (41, 241205), (95, 104099), (205, 48241), (779, 12695), (2539, 3895)]