28549180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{129769}}^1$

素因数の和:129789

約数の個数: 24

約数和(自身を含む): 65404080

約数和(自身を除く): 36854900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 129769, 259538, 519076, 648845, 1297690, 1427459, 2595380, 2854918, 5709836, 7137295, 14274590, 28549180]

約数ペア:

[(1, 28549180), (2, 14274590), (4, 7137295), (5, 5709836), (10, 2854918), (11, 2595380), (20, 1427459), (22, 1297690), (44, 648845), (55, 519076), (110, 259538), (220, 129769)]