42189020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{49057}}^1$

素因数の和:49109

約数の個数: 24

約数和(自身を含む): 90659184

約数和(自身を除く): 48470164

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 49057, 98114, 196228, 245285, 490570, 981140, 2109451, 4218902, 8437804, 10547255, 21094510, 42189020]

約数ペア:

[(1, 42189020), (2, 21094510), (4, 10547255), (5, 8437804), (10, 4218902), (20, 2109451), (43, 981140), (86, 490570), (172, 245285), (215, 196228), (430, 98114), (860, 49057)]