81066728

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{1447}}^1$

素因数の和:1649

約数の個数: 32

約数和(自身を含む): 156384000

約数和(自身を除く): 75317272

約数列:

[1, 2, 4, 8, 47, 94, 149, 188, 298, 376, 596, 1192, 1447, 2894, 5788, 7003, 11576, 14006, 28012, 56024, 68009, 136018, 215603, 272036, 431206, 544072, 862412, 1724824, 10133341, 20266682, 40533364, 81066728]

約数ペア:

[(1, 81066728), (2, 40533364), (4, 20266682), (8, 10133341), (47, 1724824), (94, 862412), (149, 544072), (188, 431206), (298, 272036), (376, 215603), (596, 136018), (1192, 68009), (1447, 56024), (2894, 28012), (5788, 14006), (7003, 11576)]