80405960

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{7103}}^1$

素因数の和:7397

約数の個数: 32

約数和(自身を含む): 181578240

約数和(自身を除く): 101172280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2264, 2830, 5660, 7103, 11320, 14206, 28412, 35515, 56824, 71030, 142060, 284120, 2010149, 4020298, 8040596, 10050745, 16081192, 20101490, 40202980, 80405960]

約数ペア:

[(1, 80405960), (2, 40202980), (4, 20101490), (5, 16081192), (8, 10050745), (10, 8040596), (20, 4020298), (40, 2010149), (283, 284120), (566, 142060), (1132, 71030), (1415, 56824), (2264, 35515), (2830, 28412), (5660, 14206), (7103, 11320)]