56764040

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{2207}}^1$

素因数の和:2861

約数の個数: 32

約数和(自身を含む): 127975680

約数和(自身を除く): 71211640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2207, 2572, 3215, 4414, 5144, 6430, 8828, 11035, 12860, 17656, 22070, 25720, 44140, 88280, 1419101, 2838202, 5676404, 7095505, 11352808, 14191010, 28382020, 56764040]

約数ペア:

[(1, 56764040), (2, 28382020), (4, 14191010), (5, 11352808), (8, 7095505), (10, 5676404), (20, 2838202), (40, 1419101), (643, 88280), (1286, 44140), (2207, 25720), (2572, 22070), (3215, 17656), (4414, 12860), (5144, 11035), (6430, 8828)]