19822280

素因数分解:

$2^3\times 5^1\times {\mathrm{495557}}^1$

素因数の和:495568

約数の個数: 16

約数和(自身を含む): 44600220

約数和(自身を除く): 24777940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 495557, 991114, 1982228, 2477785, 3964456, 4955570, 9911140, 19822280]

約数ペア:

[(1, 19822280), (2, 9911140), (4, 4955570), (5, 3964456), (8, 2477785), (10, 1982228), (20, 991114), (40, 495557)]