3944180

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{991}}^1$

素因数の和:1199

約数の個数: 24

約数和(自身を含む): 8332800

約数和(自身を除く): 4388620

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 991, 995, 1982, 1990, 3964, 3980, 4955, 9910, 19820, 197209, 394418, 788836, 986045, 1972090, 3944180]

約数ペア:

[(1, 3944180), (2, 1972090), (4, 986045), (5, 788836), (10, 394418), (20, 197209), (199, 19820), (398, 9910), (796, 4955), (991, 3980), (995, 3964), (1982, 1990)]