20485305

素因数分解:

$3^4\times 5^1\times {\mathrm{50581}}^1$

素因数の和:50598

約数の個数: 20

約数和(自身を含む): 36722532

約数和(自身を除く): 16237227

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 50581, 151743, 252905, 455229, 758715, 1365687, 2276145, 4097061, 6828435, 20485305]

約数ペア:

[(1, 20485305), (3, 6828435), (5, 4097061), (9, 2276145), (15, 1365687), (27, 758715), (45, 455229), (81, 252905), (135, 151743), (405, 50581)]