291228680

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{169319}}^1$

素因数の和:169373

約数の個数: 32

約数和(自身を含む): 670507200

約数和(自身を除く): 379278520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 169319, 338638, 677276, 846595, 1354552, 1693190, 3386380, 6772760, 7280717, 14561434, 29122868, 36403585, 58245736, 72807170, 145614340, 291228680]

約数ペア:

[(1, 291228680), (2, 145614340), (4, 72807170), (5, 58245736), (8, 36403585), (10, 29122868), (20, 14561434), (40, 7280717), (43, 6772760), (86, 3386380), (172, 1693190), (215, 1354552), (344, 846595), (430, 677276), (860, 338638), (1720, 169319)]