19943780

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{5011}}^1$

素因数の和:5219

約数の個数: 24

約数和(自身を含む): 42100800

約数和(自身を除く): 22157020

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 5011, 10022, 20044, 25055, 50110, 100220, 997189, 1994378, 3988756, 4985945, 9971890, 19943780]

約数ペア:

[(1, 19943780), (2, 9971890), (4, 4985945), (5, 3988756), (10, 1994378), (20, 997189), (199, 100220), (398, 50110), (796, 25055), (995, 20044), (1990, 10022), (3980, 5011)]