28204660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128203}}^1$

素因数の和:128223

約数の個数: 24

約数和(自身を含む): 64614816

約数和(自身を除く): 36410156

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 128203, 256406, 512812, 641015, 1282030, 1410233, 2564060, 2820466, 5640932, 7051165, 14102330, 28204660]

約数ペア:

[(1, 28204660), (2, 14102330), (4, 7051165), (5, 5640932), (10, 2820466), (11, 2564060), (20, 1410233), (22, 1282030), (44, 641015), (55, 512812), (110, 256406), (220, 128203)]