128385

素因数分解:

$3^4\times 5^1\times {\mathrm{317}}^1$

素因数の和:334

約数の個数: 20

約数和(自身を含む): 230868

約数和(自身を除く): 102483

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 317, 405, 951, 1585, 2853, 4755, 8559, 14265, 25677, 42795, 128385]

約数ペア:

[(1, 128385), (3, 42795), (5, 25677), (9, 14265), (15, 8559), (27, 4755), (45, 2853), (81, 1585), (135, 951), (317, 405)]