28056440

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{1987}}^1$

素因数の和:2351

約数の個数: 32

約数和(自身を含む): 63337680

約数和(自身を除く): 35281240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1412, 1765, 1987, 2824, 3530, 3974, 7060, 7948, 9935, 14120, 15896, 19870, 39740, 79480, 701411, 1402822, 2805644, 3507055, 5611288, 7014110, 14028220, 28056440]

約数ペア:

[(1, 28056440), (2, 14028220), (4, 7014110), (5, 5611288), (8, 3507055), (10, 2805644), (20, 1402822), (40, 701411), (353, 79480), (706, 39740), (1412, 19870), (1765, 15896), (1987, 14120), (2824, 9935), (3530, 7948), (3974, 7060)]