18039820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{39217}}^1$

素因数の和:39249

約数の個数: 24

約数和(自身を含む): 39531744

約数和(自身を除く): 21491924

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 39217, 78434, 156868, 196085, 392170, 784340, 901991, 1803982, 3607964, 4509955, 9019910, 18039820]

約数ペア:

[(1, 18039820), (2, 9019910), (4, 4509955), (5, 3607964), (10, 1803982), (20, 901991), (23, 784340), (46, 392170), (92, 196085), (115, 156868), (230, 78434), (460, 39217)]