28108580

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{10111}}^1$

素因数の和:10259

約数の個数: 24

約数和(自身を含む): 59458560

約数和(自身を除く): 31349980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 10111, 20222, 40444, 50555, 101110, 202220, 1405429, 2810858, 5621716, 7027145, 14054290, 28108580]

約数ペア:

[(1, 28108580), (2, 14054290), (4, 7027145), (5, 5621716), (10, 2810858), (20, 1405429), (139, 202220), (278, 101110), (556, 50555), (695, 40444), (1390, 20222), (2780, 10111)]