820180

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1783}}^1$

素因数の和:1815

約数の個数: 24

約数和(自身を含む): 1798272

約数和(自身を除く): 978092

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 1783, 3566, 7132, 8915, 17830, 35660, 41009, 82018, 164036, 205045, 410090, 820180]

約数ペア:

[(1, 820180), (2, 410090), (4, 205045), (5, 164036), (10, 82018), (20, 41009), (23, 35660), (46, 17830), (92, 8915), (115, 7132), (230, 3566), (460, 1783)]