8261560

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2909}}^1$

素因数の和:2991

約数の個数: 32

約数和(自身を含む): 18856800

約数和(自身を除く): 10595240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 2909, 5818, 11636, 14545, 23272, 29090, 58180, 116360, 206539, 413078, 826156, 1032695, 1652312, 2065390, 4130780, 8261560]

約数ペア:

[(1, 8261560), (2, 4130780), (4, 2065390), (5, 1652312), (8, 1032695), (10, 826156), (20, 413078), (40, 206539), (71, 116360), (142, 58180), (284, 29090), (355, 23272), (568, 14545), (710, 11636), (1420, 5818), (2840, 2909)]