20316040

素因数分解:

$2^3\times 5^1\times {\mathrm{507901}}^1$

素因数の和:507912

約数の個数: 16

約数和(自身を含む): 45711180

約数和(自身を除く): 25395140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 507901, 1015802, 2031604, 2539505, 4063208, 5079010, 10158020, 20316040]

約数ペア:

[(1, 20316040), (2, 10158020), (4, 5079010), (5, 4063208), (8, 2539505), (10, 2031604), (20, 1015802), (40, 507901)]