19220140

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22349}}^1$

素因数の和:22401

約数の個数: 24

約数和(自身を含む): 41302800

約数和(自身を除く): 22082660

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 22349, 44698, 89396, 111745, 223490, 446980, 961007, 1922014, 3844028, 4805035, 9610070, 19220140]

約数ペア:

[(1, 19220140), (2, 9610070), (4, 4805035), (5, 3844028), (10, 1922014), (20, 961007), (43, 446980), (86, 223490), (172, 111745), (215, 89396), (430, 44698), (860, 22349)]