39251440

素因数分解:

$2^4\times 5^1\times {\mathrm{490643}}^1$

素因数の和:490656

約数の個数: 20

約数和(自身を含む): 91259784

約数和(自身を除く): 52008344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 490643, 981286, 1962572, 2453215, 3925144, 4906430, 7850288, 9812860, 19625720, 39251440]

約数ペア:

[(1, 39251440), (2, 19625720), (4, 9812860), (5, 7850288), (8, 4906430), (10, 3925144), (16, 2453215), (20, 1962572), (40, 981286), (80, 490643)]