28443140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{129287}}^1$

素因数の和:129307

約数の個数: 24

約数和(自身を含む): 65161152

約数和(自身を除く): 36718012

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 129287, 258574, 517148, 646435, 1292870, 1422157, 2585740, 2844314, 5688628, 7110785, 14221570, 28443140]

約数ペア:

[(1, 28443140), (2, 14221570), (4, 7110785), (5, 5688628), (10, 2844314), (11, 2585740), (20, 1422157), (22, 1292870), (44, 646435), (55, 517148), (110, 258574), (220, 129287)]