2780140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{12637}}^1$

素因数の和:12657

約数の個数: 24

約数和(自身を含む): 6369552

約数和(自身を除く): 3589412

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 12637, 25274, 50548, 63185, 126370, 139007, 252740, 278014, 556028, 695035, 1390070, 2780140]

約数ペア:

[(1, 2780140), (2, 1390070), (4, 695035), (5, 556028), (10, 278014), (11, 252740), (20, 139007), (22, 126370), (44, 63185), (55, 50548), (110, 25274), (220, 12637)]