255080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{911}}^1$

素因数の和:929

約数の個数: 32

約数和(自身を含む): 656640

約数和(自身を除く): 401560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 911, 1822, 3644, 4555, 6377, 7288, 9110, 12754, 18220, 25508, 31885, 36440, 51016, 63770, 127540, 255080]

約数ペア:

[(1, 255080), (2, 127540), (4, 63770), (5, 51016), (7, 36440), (8, 31885), (10, 25508), (14, 18220), (20, 12754), (28, 9110), (35, 7288), (40, 6377), (56, 4555), (70, 3644), (140, 1822), (280, 911)]