20201080

素因数分解:

$2^3\times 5^1\times {\mathrm{505027}}^1$

素因数の和:505038

約数の個数: 16

約数和(自身を含む): 45452520

約数和(自身を除く): 25251440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 505027, 1010054, 2020108, 2525135, 4040216, 5050270, 10100540, 20201080]

約数ペア:

[(1, 20201080), (2, 10100540), (4, 5050270), (5, 4040216), (8, 2525135), (10, 2020108), (20, 1010054), (40, 505027)]