18170120

素因数分解:

$2^3\times 5^1\times {\mathrm{454253}}^1$

素因数の和:454264

約数の個数: 16

約数和(自身を含む): 40882860

約数和(自身を除く): 22712740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 454253, 908506, 1817012, 2271265, 3634024, 4542530, 9085060, 18170120]

約数ペア:

[(1, 18170120), (2, 9085060), (4, 4542530), (5, 3634024), (8, 2271265), (10, 1817012), (20, 908506), (40, 454253)]