28575140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{129887}}^1$

素因数の和:129907

約数の個数: 24

約数和(自身を含む): 65463552

約数和(自身を除く): 36888412

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 129887, 259774, 519548, 649435, 1298870, 1428757, 2597740, 2857514, 5715028, 7143785, 14287570, 28575140]

約数ペア:

[(1, 28575140), (2, 14287570), (4, 7143785), (5, 5715028), (10, 2857514), (11, 2597740), (20, 1428757), (22, 1298870), (44, 649435), (55, 519548), (110, 259774), (220, 129887)]