25864515

素因数分解:

$3^4\times 5^1\times {\mathrm{63863}}^1$

素因数の和:63880

約数の個数: 20

約数和(自身を含む): 46365264

約数和(自身を除く): 20500749

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 63863, 191589, 319315, 574767, 957945, 1724301, 2873835, 5172903, 8621505, 25864515]

約数ペア:

[(1, 25864515), (3, 8621505), (5, 5172903), (9, 2873835), (15, 1724301), (27, 957945), (45, 574767), (81, 319315), (135, 191589), (405, 63863)]