20798840840

素因数分解:

$2^3\times 5^1\times {\mathrm{519971021}}^1$

素因数の和:519971032

約数の個数: 16

約数和(自身を含む): 46797391980

約数和(自身を除く): 25998551140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 519971021, 1039942042, 2079884084, 2599855105, 4159768168, 5199710210, 10399420420, 20798840840]

約数ペア:

[(1, 20798840840), (2, 10399420420), (4, 5199710210), (5, 4159768168), (8, 2599855105), (10, 2079884084), (20, 1039942042), (40, 519971021)]