19028560

素因数分解:

$2^4\times 5^1\times {\mathrm{237857}}^1$

素因数の和:237870

約数の個数: 20

約数和(自身を含む): 44241588

約数和(自身を除く): 25213028

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 237857, 475714, 951428, 1189285, 1902856, 2378570, 3805712, 4757140, 9514280, 19028560]

約数ペア:

[(1, 19028560), (2, 9514280), (4, 4757140), (5, 3805712), (8, 2378570), (10, 1902856), (16, 1189285), (20, 951428), (40, 475714), (80, 237857)]