68631620

素因数分解:

$2^2\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{3361}}^1$

素因数の和:4391

約数の個数: 24

約数和(自身を含む): 144310488

約数和(自身を除く): 75678868

約数列:

[1, 2, 4, 5, 10, 20, 1021, 2042, 3361, 4084, 5105, 6722, 10210, 13444, 16805, 20420, 33610, 67220, 3431581, 6863162, 13726324, 17157905, 34315810, 68631620]

約数ペア:

[(1, 68631620), (2, 34315810), (4, 17157905), (5, 13726324), (10, 6863162), (20, 3431581), (1021, 67220), (2042, 33610), (3361, 20420), (4084, 16805), (5105, 13444), (6722, 10210)]