27996820

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{2851}}^1$

素因数の和:3351

約数の個数: 24

約数和(自身を含む): 58933728

約数和(自身を除く): 30936908

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 2851, 4910, 5702, 9820, 11404, 14255, 28510, 57020, 1399841, 2799682, 5599364, 6999205, 13998410, 27996820]

約数ペア:

[(1, 27996820), (2, 13998410), (4, 6999205), (5, 5599364), (10, 2799682), (20, 1399841), (491, 57020), (982, 28510), (1964, 14255), (2455, 11404), (2851, 9820), (4910, 5702)]