16218740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{18859}}^1$

素因数の和:18911

約数の個数: 24

約数和(自身を含む): 34853280

約数和(自身を除く): 18634540

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 18859, 37718, 75436, 94295, 188590, 377180, 810937, 1621874, 3243748, 4054685, 8109370, 16218740]

約数ペア:

[(1, 16218740), (2, 8109370), (4, 4054685), (5, 3243748), (10, 1621874), (20, 810937), (43, 377180), (86, 188590), (172, 94295), (215, 75436), (430, 37718), (860, 18859)]