28262740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128467}}^1$

素因数の和:128487

約数の個数: 24

約数和(自身を含む): 64747872

約数和(自身を除く): 36485132

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 128467, 256934, 513868, 642335, 1284670, 1413137, 2569340, 2826274, 5652548, 7065685, 14131370, 28262740]

約数ペア:

[(1, 28262740), (2, 14131370), (4, 7065685), (5, 5652548), (10, 2826274), (11, 2569340), (20, 1413137), (22, 1284670), (44, 642335), (55, 513868), (110, 256934), (220, 128467)]