208516040

素因数分解:

$2^3\times 5^1\times {\mathrm{5212901}}^1$

素因数の和:5212912

約数の個数: 16

約数和(自身を含む): 469161180

約数和(自身を除く): 260645140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5212901, 10425802, 20851604, 26064505, 41703208, 52129010, 104258020, 208516040]

約数ペア:

[(1, 208516040), (2, 104258020), (4, 52129010), (5, 41703208), (8, 26064505), (10, 20851604), (20, 10425802), (40, 5212901)]