66781665

素因数分解:

$3^4\times 5^1\times {\mathrm{164893}}^1$

素因数の和:164910

約数の個数: 20

約数和(自身を含む): 119713044

約数和(自身を除く): 52931379

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 164893, 494679, 824465, 1484037, 2473395, 4452111, 7420185, 13356333, 22260555, 66781665]

約数ペア:

[(1, 66781665), (3, 22260555), (5, 13356333), (9, 7420185), (15, 4452111), (27, 2473395), (45, 1484037), (81, 824465), (135, 494679), (405, 164893)]