15660945

素因数分解:

$3^4\times 5^1\times {\mathrm{38669}}^1$

素因数の和:38686

約数の個数: 20

約数和(自身を含む): 28074420

約数和(自身を除く): 12413475

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 38669, 116007, 193345, 348021, 580035, 1044063, 1740105, 3132189, 5220315, 15660945]

約数ペア:

[(1, 15660945), (3, 5220315), (5, 3132189), (9, 1740105), (15, 1044063), (27, 580035), (45, 348021), (81, 193345), (135, 116007), (405, 38669)]