19589020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89041}}^1$

素因数の和:89061

約数の個数: 24

約数和(自身を含む): 44877168

約数和(自身を除く): 25288148

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 89041, 178082, 356164, 445205, 890410, 979451, 1780820, 1958902, 3917804, 4897255, 9794510, 19589020]

約数ペア:

[(1, 19589020), (2, 9794510), (4, 4897255), (5, 3917804), (10, 1958902), (11, 1780820), (20, 979451), (22, 890410), (44, 445205), (55, 356164), (110, 178082), (220, 89041)]