20397550

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{17737}}^1$

素因数の和:17772

約数の個数: 24

約数和(自身を含む): 39591216

約数和(自身を除く): 19193666

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 115, 230, 575, 1150, 17737, 35474, 88685, 177370, 407951, 443425, 815902, 886850, 2039755, 4079510, 10198775, 20397550]

約数ペア:

[(1, 20397550), (2, 10198775), (5, 4079510), (10, 2039755), (23, 886850), (25, 815902), (46, 443425), (50, 407951), (115, 177370), (230, 88685), (575, 35474), (1150, 17737)]