20189860

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43891}}^1$

素因数の和:43923

約数の個数: 24

約数和(自身を含む): 44243136

約数和(自身を除く): 24053276

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 43891, 87782, 175564, 219455, 438910, 877820, 1009493, 2018986, 4037972, 5047465, 10094930, 20189860]

約数ペア:

[(1, 20189860), (2, 10094930), (4, 5047465), (5, 4037972), (10, 2018986), (20, 1009493), (23, 877820), (46, 438910), (92, 219455), (115, 175564), (230, 87782), (460, 43891)]