80423080

素因数分解:

$2^3\times 5^1\times {\mathrm{911}}^1\times {\mathrm{2207}}^1$

素因数の和:3129

約数の個数: 32

約数和(自身を含む): 181232640

約数和(自身を除く): 100809560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 911, 1822, 2207, 3644, 4414, 4555, 7288, 8828, 9110, 11035, 17656, 18220, 22070, 36440, 44140, 88280, 2010577, 4021154, 8042308, 10052885, 16084616, 20105770, 40211540, 80423080]

約数ペア:

[(1, 80423080), (2, 40211540), (4, 20105770), (5, 16084616), (8, 10052885), (10, 8042308), (20, 4021154), (40, 2010577), (911, 88280), (1822, 44140), (2207, 36440), (3644, 22070), (4414, 18220), (4555, 17656), (7288, 11035), (8828, 9110)]