198453560

素因数分解:

$2^3\times 5^1\times {\mathrm{4961339}}^1$

素因数の和:4961350

約数の個数: 16

約数和(自身を含む): 446520600

約数和(自身を除く): 248067040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4961339, 9922678, 19845356, 24806695, 39690712, 49613390, 99226780, 198453560]

約数ペア:

[(1, 198453560), (2, 99226780), (4, 49613390), (5, 39690712), (8, 24806695), (10, 19845356), (20, 9922678), (40, 4961339)]