28719945

素因数分解:

$3^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1279}}^1$

素因数の和:1789

約数の個数: 24

約数和(自身を含む): 49920000

約数和(自身を除く): 21200055

約数列:

[1, 3, 5, 9, 15, 45, 499, 1279, 1497, 2495, 3837, 4491, 6395, 7485, 11511, 19185, 22455, 57555, 638221, 1914663, 3191105, 5743989, 9573315, 28719945]

約数ペア:

[(1, 28719945), (3, 9573315), (5, 5743989), (9, 3191105), (15, 1914663), (45, 638221), (499, 57555), (1279, 22455), (1497, 19185), (2495, 11511), (3837, 7485), (4491, 6395)]