138841580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{169319}}^1$

素因数の和:169369

約数の個数: 24

約数和(自身を含む): 298680480

約数和(自身を除く): 159838900

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 169319, 338638, 677276, 846595, 1693190, 3386380, 6942079, 13884158, 27768316, 34710395, 69420790, 138841580]

約数ペア:

[(1, 138841580), (2, 69420790), (4, 34710395), (5, 27768316), (10, 13884158), (20, 6942079), (41, 3386380), (82, 1693190), (164, 846595), (205, 677276), (410, 338638), (820, 169319)]