20885050

素因数分解:

$2^1\times 5^2\times {\mathrm{199}}^1\times {\mathrm{2099}}^1$

素因数の和:2310

約数の個数: 24

約数和(自身を含む): 39060000

約数和(自身を除く): 18174950

約数列:

[1, 2, 5, 10, 25, 50, 199, 398, 995, 1990, 2099, 4198, 4975, 9950, 10495, 20990, 52475, 104950, 417701, 835402, 2088505, 4177010, 10442525, 20885050]

約数ペア:

[(1, 20885050), (2, 10442525), (5, 4177010), (10, 2088505), (25, 835402), (50, 417701), (199, 104950), (398, 52475), (995, 20990), (1990, 10495), (2099, 9950), (4198, 4975)]