8390385

素因数分解:

$3^4\times 5^1\times {\mathrm{20717}}^1$

素因数の和:20734

約数の個数: 20

約数和(自身を含む): 15041268

約数和(自身を除く): 6650883

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 20717, 62151, 103585, 186453, 310755, 559359, 932265, 1678077, 2796795, 8390385]

約数ペア:

[(1, 8390385), (3, 2796795), (5, 1678077), (9, 932265), (15, 559359), (27, 310755), (45, 186453), (81, 103585), (135, 62151), (405, 20717)]