17964725

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:389

約数の個数: 24

約数和(自身を含む): 23510400

約数和(自身を除く): 5545675

約数列:

[1, 5, 23, 25, 115, 157, 199, 575, 785, 995, 3611, 3925, 4577, 4975, 18055, 22885, 31243, 90275, 114425, 156215, 718589, 781075, 3592945, 17964725]

約数ペア:

[(1, 17964725), (5, 3592945), (23, 781075), (25, 718589), (115, 156215), (157, 114425), (199, 90275), (575, 31243), (785, 22885), (995, 18055), (3611, 4975), (3925, 4577)]