81346360

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{119627}}^1$

素因数の和:119655

約数の個数: 32

約数和(自身を含む): 193797360

約数和(自身を除く): 112451000

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 119627, 239254, 478508, 598135, 957016, 1196270, 2033659, 2392540, 4067318, 4785080, 8134636, 10168295, 16269272, 20336590, 40673180, 81346360]

約数ペア:

[(1, 81346360), (2, 40673180), (4, 20336590), (5, 16269272), (8, 10168295), (10, 8134636), (17, 4785080), (20, 4067318), (34, 2392540), (40, 2033659), (68, 1196270), (85, 957016), (136, 598135), (170, 478508), (340, 239254), (680, 119627)]