808213820

素因数分解:

$2^2\times 5^1\times {\mathrm{1429}}^1\times {\mathrm{28279}}^1$

素因数の和:29717

約数の個数: 24

約数和(自身を含む): 1698496800

約数和(自身を除く): 890282980

約数列:

[1, 2, 4, 5, 10, 20, 1429, 2858, 5716, 7145, 14290, 28279, 28580, 56558, 113116, 141395, 282790, 565580, 40410691, 80821382, 161642764, 202053455, 404106910, 808213820]

約数ペア:

[(1, 808213820), (2, 404106910), (4, 202053455), (5, 161642764), (10, 80821382), (20, 40410691), (1429, 565580), (2858, 282790), (5716, 141395), (7145, 113116), (14290, 56558), (28279, 28580)]