25860465

素因数分解:

$3^4\times 5^1\times {\mathrm{63853}}^1$

素因数の和:63870

約数の個数: 20

約数和(自身を含む): 46358004

約数和(自身を除く): 20497539

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 63853, 191559, 319265, 574677, 957795, 1724031, 2873385, 5172093, 8620155, 25860465]

約数ペア:

[(1, 25860465), (3, 8620155), (5, 5172093), (9, 2873385), (15, 1724031), (27, 957795), (45, 574677), (81, 319265), (135, 191559), (405, 63853)]