18723910

素因数分解:

$2^1\times 5^1\times {\mathrm{97}}^2\times {\mathrm{199}}^1$

素因数の和:400

約数の個数: 24

約数和(自身を含む): 34225200

約数和(自身を除く): 15501290

約数列:

[1, 2, 5, 10, 97, 194, 199, 398, 485, 970, 995, 1990, 9409, 18818, 19303, 38606, 47045, 94090, 96515, 193030, 1872391, 3744782, 9361955, 18723910]

約数ペア:

[(1, 18723910), (2, 9361955), (5, 3744782), (10, 1872391), (97, 193030), (194, 96515), (199, 94090), (398, 47045), (485, 38606), (970, 19303), (995, 18818), (1990, 9409)]