675945

素因数分解:

$3^4\times 5^1\times {\mathrm{1669}}^1$

素因数の和:1686

約数の個数: 20

約数和(自身を含む): 1212420

約数和(自身を除く): 536475

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 1669, 5007, 8345, 15021, 25035, 45063, 75105, 135189, 225315, 675945]

約数ペア:

[(1, 675945), (3, 225315), (5, 135189), (9, 75105), (15, 45063), (27, 25035), (45, 15021), (81, 8345), (135, 5007), (405, 1669)]