82609820

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{10099}}^1$

素因数の和:10517

約数の個数: 24

約数和(自身を含む): 173922000

約数和(自身を除く): 91312180

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 10099, 20198, 40396, 50495, 100990, 201980, 4130491, 8260982, 16521964, 20652455, 41304910, 82609820]

約数ペア:

[(1, 82609820), (2, 41304910), (4, 20652455), (5, 16521964), (10, 8260982), (20, 4130491), (409, 201980), (818, 100990), (1636, 50495), (2045, 40396), (4090, 20198), (8180, 10099)]