20287000

素因数分解:

$2^3\times 5^3\times {\mathrm{20287}}^1$

素因数の和:20308

約数の個数: 32

約数和(自身を含む): 47473920

約数和(自身を除く): 27186920

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000, 20287, 40574, 81148, 101435, 162296, 202870, 405740, 507175, 811480, 1014350, 2028700, 2535875, 4057400, 5071750, 10143500, 20287000]

約数ペア:

[(1, 20287000), (2, 10143500), (4, 5071750), (5, 4057400), (8, 2535875), (10, 2028700), (20, 1014350), (25, 811480), (40, 507175), (50, 405740), (100, 202870), (125, 162296), (200, 101435), (250, 81148), (500, 40574), (1000, 20287)]