68491820

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{17209}}^1$

素因数の和:17417

約数の個数: 24

約数和(自身を含む): 144564000

約数和(自身を除く): 76072180

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 17209, 34418, 68836, 86045, 172090, 344180, 3424591, 6849182, 13698364, 17122955, 34245910, 68491820]

約数ペア:

[(1, 68491820), (2, 34245910), (4, 17122955), (5, 13698364), (10, 6849182), (20, 3424591), (199, 344180), (398, 172090), (796, 86045), (995, 68836), (1990, 34418), (3980, 17209)]