2019892220

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{512663}}^1$

素因数の和:512869

約数の個数: 24

約数和(自身を含む): 4263313824

約数和(自身を除く): 2243421604

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 512663, 1025326, 2050652, 2563315, 5126630, 10253260, 100994611, 201989222, 403978444, 504973055, 1009946110, 2019892220]

約数ペア:

[(1, 2019892220), (2, 1009946110), (4, 504973055), (5, 403978444), (10, 201989222), (20, 100994611), (197, 10253260), (394, 5126630), (788, 2563315), (985, 2050652), (1970, 1025326), (3940, 512663)]