20364040

素因数分解:

$2^3\times 5^1\times {\mathrm{509101}}^1$

素因数の和:509112

約数の個数: 16

約数和(自身を含む): 45819180

約数和(自身を除く): 25455140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509101, 1018202, 2036404, 2545505, 4072808, 5091010, 10182020, 20364040]

約数ペア:

[(1, 20364040), (2, 10182020), (4, 5091010), (5, 4072808), (8, 2545505), (10, 2036404), (20, 1018202), (40, 509101)]