13999280

素因数分解:

$2^4\times 5^1\times {\mathrm{174991}}^1$

素因数の和:175004

約数の個数: 20

約数和(自身を含む): 32548512

約数和(自身を除く): 18549232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 174991, 349982, 699964, 874955, 1399928, 1749910, 2799856, 3499820, 6999640, 13999280]

約数ペア:

[(1, 13999280), (2, 6999640), (4, 3499820), (5, 2799856), (8, 1749910), (10, 1399928), (16, 874955), (20, 699964), (40, 349982), (80, 174991)]