81813080

素因数分解:

$2^3\times 5^1\times {\mathrm{1151}}^1\times {\mathrm{1777}}^1$

素因数の和:2939

約数の個数: 32

約数和(自身を含む): 184343040

約数和(自身を除く): 102529960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1151, 1777, 2302, 3554, 4604, 5755, 7108, 8885, 9208, 11510, 14216, 17770, 23020, 35540, 46040, 71080, 2045327, 4090654, 8181308, 10226635, 16362616, 20453270, 40906540, 81813080]

約数ペア:

[(1, 81813080), (2, 40906540), (4, 20453270), (5, 16362616), (8, 10226635), (10, 8181308), (20, 4090654), (40, 2045327), (1151, 71080), (1777, 46040), (2302, 35540), (3554, 23020), (4604, 17770), (5755, 14216), (7108, 11510), (8885, 9208)]