2019458032

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{640691}}^1$

素因数の和:640896

約数の個数: 20

約数和(自身を含む): 3932567496

約数和(自身を除く): 1913109464

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 640691, 1281382, 2562764, 5125528, 10251056, 126216127, 252432254, 504864508, 1009729016, 2019458032]

約数ペア:

[(1, 2019458032), (2, 1009729016), (4, 504864508), (8, 252432254), (16, 126216127), (197, 10251056), (394, 5125528), (788, 2562764), (1576, 1281382), (3152, 640691)]