19936040

素因数分解:

$2^3\times 5^1\times {\mathrm{498401}}^1$

素因数の和:498412

約数の個数: 16

約数和(自身を含む): 44856180

約数和(自身を除く): 24920140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 498401, 996802, 1993604, 2492005, 3987208, 4984010, 9968020, 19936040]

約数ペア:

[(1, 19936040), (2, 9968020), (4, 4984010), (5, 3987208), (8, 2492005), (10, 1993604), (20, 996802), (40, 498401)]