406960

素因数分解:

$2^4\times 5^1\times {\mathrm{5087}}^1$

素因数の和:5100

約数の個数: 20

約数和(自身を含む): 946368

約数和(自身を除く): 539408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5087, 10174, 20348, 25435, 40696, 50870, 81392, 101740, 203480, 406960]

約数ペア:

[(1, 406960), (2, 203480), (4, 101740), (5, 81392), (8, 50870), (10, 40696), (16, 25435), (20, 20348), (40, 10174), (80, 5087)]