20390135

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{3023}}^1$

素因数の和:3118

約数の個数: 16

約数和(自身を含む): 26127360

約数和(自身を除く): 5737225

約数列:

[1, 5, 19, 71, 95, 355, 1349, 3023, 6745, 15115, 57437, 214633, 287185, 1073165, 4078027, 20390135]

約数ペア:

[(1, 20390135), (5, 4078027), (19, 1073165), (71, 287185), (95, 214633), (355, 57437), (1349, 15115), (3023, 6745)]