28542140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{129737}}^1$

素因数の和:129757

約数の個数: 24

約数和(自身を含む): 65387952

約数和(自身を除く): 36845812

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 129737, 259474, 518948, 648685, 1297370, 1427107, 2594740, 2854214, 5708428, 7135535, 14271070, 28542140]

約数ペア:

[(1, 28542140), (2, 14271070), (4, 7135535), (5, 5708428), (10, 2854214), (11, 2594740), (20, 1427107), (22, 1297370), (44, 648685), (55, 518948), (110, 259474), (220, 129737)]