19983580

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{5021}}^1$

素因数の和:5229

約数の個数: 24

約数和(自身を含む): 42184800

約数和(自身を除く): 22201220

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 5021, 10042, 20084, 25105, 50210, 100420, 999179, 1998358, 3996716, 4995895, 9991790, 19983580]

約数ペア:

[(1, 19983580), (2, 9991790), (4, 4995895), (5, 3996716), (10, 1998358), (20, 999179), (199, 100420), (398, 50210), (796, 25105), (995, 20084), (1990, 10042), (3980, 5021)]