18688090

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{9391}}^1$

素因数の和:9597

約数の個数: 16

約数和(自身を含む): 33811200

約数和(自身を除く): 15123110

約数列:

[1, 2, 5, 10, 199, 398, 995, 1990, 9391, 18782, 46955, 93910, 1868809, 3737618, 9344045, 18688090]

約数ペア:

[(1, 18688090), (2, 9344045), (5, 3737618), (10, 1868809), (199, 93910), (398, 46955), (995, 18782), (1990, 9391)]