19847720

素因数分解:

$2^3\times 5^1\times {\mathrm{496193}}^1$

素因数の和:496204

約数の個数: 16

約数和(自身を含む): 44657460

約数和(自身を除く): 24809740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 496193, 992386, 1984772, 2480965, 3969544, 4961930, 9923860, 19847720]

約数ペア:

[(1, 19847720), (2, 9923860), (4, 4961930), (5, 3969544), (8, 2480965), (10, 1984772), (20, 992386), (40, 496193)]