856356705

素因数分解:

$3^4\times 5^1\times {\mathrm{2114461}}^1$

素因数の和:2114478

約数の個数: 20

約数和(自身を含む): 1535099412

約数和(自身を除く): 678742707

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2114461, 6343383, 10572305, 19030149, 31716915, 57090447, 95150745, 171271341, 285452235, 856356705]

約数ペア:

[(1, 856356705), (3, 285452235), (5, 171271341), (9, 95150745), (15, 57090447), (27, 31716915), (45, 19030149), (81, 10572305), (135, 6343383), (405, 2114461)]