20796820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{94531}}^1$

素因数の和:94551

約数の個数: 24

約数和(自身を含む): 47644128

約数和(自身を除く): 26847308

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 94531, 189062, 378124, 472655, 945310, 1039841, 1890620, 2079682, 4159364, 5199205, 10398410, 20796820]

約数ペア:

[(1, 20796820), (2, 10398410), (4, 5199205), (5, 4159364), (10, 2079682), (11, 1890620), (20, 1039841), (22, 945310), (44, 472655), (55, 378124), (110, 189062), (220, 94531)]