28367020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128941}}^1$

素因数の和:128961

約数の個数: 24

約数和(自身を含む): 64986768

約数和(自身を除く): 36619748

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 128941, 257882, 515764, 644705, 1289410, 1418351, 2578820, 2836702, 5673404, 7091755, 14183510, 28367020]

約数ペア:

[(1, 28367020), (2, 14183510), (4, 7091755), (5, 5673404), (10, 2836702), (11, 2578820), (20, 1418351), (22, 1289410), (44, 644705), (55, 515764), (110, 257882), (220, 128941)]