28223140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128287}}^1$

素因数の和:128307

約数の個数: 24

約数和(自身を含む): 64657152

約数和(自身を除く): 36434012

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 128287, 256574, 513148, 641435, 1282870, 1411157, 2565740, 2822314, 5644628, 7055785, 14111570, 28223140]

約数ペア:

[(1, 28223140), (2, 14111570), (4, 7055785), (5, 5644628), (10, 2822314), (11, 2565740), (20, 1411157), (22, 1282870), (44, 641435), (55, 513148), (110, 256574), (220, 128287)]