413505

素因数分解:

$3^4\times 5^1\times {\mathrm{1021}}^1$

素因数の和:1038

約数の個数: 20

約数和(自身を含む): 741972

約数和(自身を除く): 328467

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 1021, 3063, 5105, 9189, 15315, 27567, 45945, 82701, 137835, 413505]

約数ペア:

[(1, 413505), (3, 137835), (5, 82701), (9, 45945), (15, 27567), (27, 15315), (45, 9189), (81, 5105), (135, 3063), (405, 1021)]