20089990

素因数分解:

$2^1\times 5^1\times {\mathrm{971}}^1\times {\mathrm{2069}}^1$

素因数の和:3047

約数の個数: 16

約数和(自身を含む): 36216720

約数和(自身を除く): 16126730

約数列:

[1, 2, 5, 10, 971, 1942, 2069, 4138, 4855, 9710, 10345, 20690, 2008999, 4017998, 10044995, 20089990]

約数ペア:

[(1, 20089990), (2, 10044995), (5, 4017998), (10, 2008999), (971, 20690), (1942, 10345), (2069, 9710), (4138, 4855)]