18887090

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{9491}}^1$

素因数の和:9697

約数の個数: 16

約数和(自身を含む): 34171200

約数和(自身を除く): 15284110

約数列:

[1, 2, 5, 10, 199, 398, 995, 1990, 9491, 18982, 47455, 94910, 1888709, 3777418, 9443545, 18887090]

約数ペア:

[(1, 18887090), (2, 9443545), (5, 3777418), (10, 1888709), (199, 94910), (398, 47455), (995, 18982), (1990, 9491)]