85398340

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{9907}}^1$

素因数の和:10347

約数の個数: 24

約数和(自身を含む): 179770752

約数和(自身を除く): 94372412

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 1724, 2155, 4310, 8620, 9907, 19814, 39628, 49535, 99070, 198140, 4269917, 8539834, 17079668, 21349585, 42699170, 85398340]

約数ペア:

[(1, 85398340), (2, 42699170), (4, 21349585), (5, 17079668), (10, 8539834), (20, 4269917), (431, 198140), (862, 99070), (1724, 49535), (2155, 39628), (4310, 19814), (8620, 9907)]