12886960

素因数分解:

$2^4\times 5^1\times {\mathrm{161087}}^1$

素因数の和:161100

約数の個数: 20

約数和(自身を含む): 29962368

約数和(自身を除く): 17075408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 161087, 322174, 644348, 805435, 1288696, 1610870, 2577392, 3221740, 6443480, 12886960]

約数ペア:

[(1, 12886960), (2, 6443480), (4, 3221740), (5, 2577392), (8, 1610870), (10, 1288696), (16, 805435), (20, 644348), (40, 322174), (80, 161087)]