81857080

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{43541}}^1$

素因数の和:43599

約数の個数: 32

約数和(自身を含む): 188101440

約数和(自身を除く): 106244360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 43541, 87082, 174164, 217705, 348328, 435410, 870820, 1741640, 2046427, 4092854, 8185708, 10232135, 16371416, 20464270, 40928540, 81857080]

約数ペア:

[(1, 81857080), (2, 40928540), (4, 20464270), (5, 16371416), (8, 10232135), (10, 8185708), (20, 4092854), (40, 2046427), (47, 1741640), (94, 870820), (188, 435410), (235, 348328), (376, 217705), (470, 174164), (940, 87082), (1880, 43541)]