28782945

素因数分解:

$3^4\times 5^1\times {\mathrm{71069}}^1$

素因数の和:71086

約数の個数: 20

約数和(自身を含む): 51596820

約数和(自身を除く): 22813875

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 71069, 213207, 355345, 639621, 1066035, 1918863, 3198105, 5756589, 9594315, 28782945]

約数ペア:

[(1, 28782945), (3, 9594315), (5, 5756589), (9, 3198105), (15, 1918863), (27, 1066035), (45, 639621), (81, 355345), (135, 213207), (405, 71069)]