19495340

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22669}}^1$

素因数の和:22721

約数の個数: 24

約数和(自身を含む): 41894160

約数和(自身を除く): 22398820

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 22669, 45338, 90676, 113345, 226690, 453380, 974767, 1949534, 3899068, 4873835, 9747670, 19495340]

約数ペア:

[(1, 19495340), (2, 9747670), (4, 4873835), (5, 3899068), (10, 1949534), (20, 974767), (43, 453380), (86, 226690), (172, 113345), (215, 90676), (430, 45338), (860, 22669)]