180920385

素因数分解:

$3^4\times 5^1\times {\mathrm{446717}}^1$

素因数の和:446734

約数の個数: 20

約数和(自身を含む): 324317268

約数和(自身を除く): 143396883

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 446717, 1340151, 2233585, 4020453, 6700755, 12061359, 20102265, 36184077, 60306795, 180920385]

約数ペア:

[(1, 180920385), (3, 60306795), (5, 36184077), (9, 20102265), (15, 12061359), (27, 6700755), (45, 4020453), (81, 2233585), (135, 1340151), (405, 446717)]