20439500

素因数分解:

$2^2\times 5^3\times {\mathrm{40879}}^1$

素因数の和:40898

約数の個数: 24

約数和(自身を含む): 44640960

約数和(自身を除く): 24201460

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 40879, 81758, 163516, 204395, 408790, 817580, 1021975, 2043950, 4087900, 5109875, 10219750, 20439500]

約数ペア:

[(1, 20439500), (2, 10219750), (4, 5109875), (5, 4087900), (10, 2043950), (20, 1021975), (25, 817580), (50, 408790), (100, 204395), (125, 163516), (250, 81758), (500, 40879)]