20464460

素因数分解:

$2^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{2239}}^1$

素因数の和:2705

約数の個数: 24

約数和(自身を含む): 43088640

約数和(自身を除く): 22624180

約数列:

[1, 2, 4, 5, 10, 20, 457, 914, 1828, 2239, 2285, 4478, 4570, 8956, 9140, 11195, 22390, 44780, 1023223, 2046446, 4092892, 5116115, 10232230, 20464460]

約数ペア:

[(1, 20464460), (2, 10232230), (4, 5116115), (5, 4092892), (10, 2046446), (20, 1023223), (457, 44780), (914, 22390), (1828, 11195), (2239, 9140), (2285, 8956), (4478, 4570)]