187779820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{408217}}^1$

素因数の和:408249

約数の個数: 24

約数和(自身を含む): 411483744

約数和(自身を除く): 223703924

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 408217, 816434, 1632868, 2041085, 4082170, 8164340, 9388991, 18777982, 37555964, 46944955, 93889910, 187779820]

約数ペア:

[(1, 187779820), (2, 93889910), (4, 46944955), (5, 37555964), (10, 18777982), (20, 9388991), (23, 8164340), (46, 4082170), (92, 2041085), (115, 1632868), (230, 816434), (460, 408217)]