90243315

素因数分解:

$3^4\times 5^1\times {\mathrm{222823}}^1$

素因数の和:222840

約数の個数: 20

約数和(自身を含む): 161770224

約数和(自身を除く): 71526909

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 222823, 668469, 1114115, 2005407, 3342345, 6016221, 10027035, 18048663, 30081105, 90243315]

約数ペア:

[(1, 90243315), (3, 30081105), (5, 18048663), (9, 10027035), (15, 6016221), (27, 3342345), (45, 2005407), (81, 1114115), (135, 668469), (405, 222823)]