161623755

素因数分解:

$3^4\times 5^1\times {\mathrm{399071}}^1$

素因数の和:399088

約数の個数: 20

約数和(自身を含む): 289726272

約数和(自身を除く): 128102517

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 399071, 1197213, 1995355, 3591639, 5986065, 10774917, 17958195, 32324751, 53874585, 161623755]

約数ペア:

[(1, 161623755), (3, 53874585), (5, 32324751), (9, 17958195), (15, 10774917), (27, 5986065), (45, 3591639), (81, 1995355), (135, 1197213), (405, 399071)]