123456280

素因数分解:

$2^3\times 5^1\times {\mathrm{3086407}}^1$

素因数の和:3086418

約数の個数: 16

約数和(自身を含む): 277776720

約数和(自身を除く): 154320440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3086407, 6172814, 12345628, 15432035, 24691256, 30864070, 61728140, 123456280]

約数ペア:

[(1, 123456280), (2, 61728140), (4, 30864070), (5, 24691256), (8, 15432035), (10, 12345628), (20, 6172814), (40, 3086407)]