19404040

素因数分解:

$2^3\times 5^1\times {\mathrm{485101}}^1$

素因数の和:485112

約数の個数: 16

約数和(自身を含む): 43659180

約数和(自身を除く): 24255140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 485101, 970202, 1940404, 2425505, 3880808, 4851010, 9702020, 19404040]

約数ペア:

[(1, 19404040), (2, 9702020), (4, 4851010), (5, 3880808), (8, 2425505), (10, 1940404), (20, 970202), (40, 485101)]