64042180

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{16091}}^1$

素因数の和:16299

約数の個数: 24

約数和(自身を含む): 135172800

約数和(自身を除く): 71130620

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 16091, 32182, 64364, 80455, 160910, 321820, 3202109, 6404218, 12808436, 16010545, 32021090, 64042180]

約数ペア:

[(1, 64042180), (2, 32021090), (4, 16010545), (5, 12808436), (10, 6404218), (20, 3202109), (199, 321820), (398, 160910), (796, 80455), (995, 64364), (1990, 32182), (3980, 16091)]