16216040

素因数分解:

$2^3\times 5^1\times {\mathrm{405401}}^1$

素因数の和:405412

約数の個数: 16

約数和(自身を含む): 36486180

約数和(自身を除く): 20270140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 405401, 810802, 1621604, 2027005, 3243208, 4054010, 8108020, 16216040]

約数ペア:

[(1, 16216040), (2, 8108020), (4, 4054010), (5, 3243208), (8, 2027005), (10, 1621604), (20, 810802), (40, 405401)]