19853660

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{5039}}^1$

素因数の和:5245

約数の個数: 24

約数和(自身を含む): 41912640

約数和(自身を除く): 22058980

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 5039, 10078, 20156, 25195, 50390, 100780, 992683, 1985366, 3970732, 4963415, 9926830, 19853660]

約数ペア:

[(1, 19853660), (2, 9926830), (4, 4963415), (5, 3970732), (10, 1985366), (20, 992683), (197, 100780), (394, 50390), (788, 25195), (985, 20156), (1970, 10078), (3940, 5039)]