19575280

素因数分解:

$2^4\times 5^1\times {\mathrm{244691}}^1$

素因数の和:244704

約数の個数: 20

約数和(自身を含む): 45512712

約数和(自身を除く): 25937432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 244691, 489382, 978764, 1223455, 1957528, 2446910, 3915056, 4893820, 9787640, 19575280]

約数ペア:

[(1, 19575280), (2, 9787640), (4, 4893820), (5, 3915056), (8, 2446910), (10, 1957528), (16, 1223455), (20, 978764), (40, 489382), (80, 244691)]