25280505

素因数分解:

$3^5\times 5^1\times {\mathrm{20807}}^1$

素因数の和:20827

約数の個数: 24

約数和(自身を含む): 45444672

約数和(自身を除く): 20164167

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 20807, 62421, 104035, 187263, 312105, 561789, 936315, 1685367, 2808945, 5056101, 8426835, 25280505]

約数ペア:

[(1, 25280505), (3, 8426835), (5, 5056101), (9, 2808945), (15, 1685367), (27, 936315), (45, 561789), (81, 312105), (135, 187263), (243, 104035), (405, 62421), (1215, 20807)]