28388140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{129037}}^1$

素因数の和:129057

約数の個数: 24

約数和(自身を含む): 65035152

約数和(自身を除く): 36647012

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 129037, 258074, 516148, 645185, 1290370, 1419407, 2580740, 2838814, 5677628, 7097035, 14194070, 28388140]

約数ペア:

[(1, 28388140), (2, 14194070), (4, 7097035), (5, 5677628), (10, 2838814), (11, 2580740), (20, 1419407), (22, 1290370), (44, 645185), (55, 516148), (110, 258074), (220, 129037)]