19716040

素因数分解:

$2^3\times 5^1\times {\mathrm{492901}}^1$

素因数の和:492912

約数の個数: 16

約数和(自身を含む): 44361180

約数和(自身を除く): 24645140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 492901, 985802, 1971604, 2464505, 3943208, 4929010, 9858020, 19716040]

約数ペア:

[(1, 19716040), (2, 9858020), (4, 4929010), (5, 3943208), (8, 2464505), (10, 1971604), (20, 985802), (40, 492901)]