19142740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22259}}^1$

素因数の和:22311

約数の個数: 24

約数和(自身を含む): 41136480

約数和(自身を除く): 21993740

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 22259, 44518, 89036, 111295, 222590, 445180, 957137, 1914274, 3828548, 4785685, 9571370, 19142740]

約数ペア:

[(1, 19142740), (2, 9571370), (4, 4785685), (5, 3828548), (10, 1914274), (20, 957137), (43, 445180), (86, 222590), (172, 111295), (215, 89036), (430, 44518), (860, 22259)]