80428740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{191497}}^1$

素因数の和:191516

約数の個数: 48

約数和(自身を含む): 257373312

約数和(自身を除く): 176944572

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 191497, 382994, 574491, 765988, 957485, 1148982, 1340479, 1914970, 2297964, 2680958, 2872455, 3829940, 4021437, 5361916, 5744910, 6702395, 8042874, 11489820, 13404790, 16085748, 20107185, 26809580, 40214370, 80428740]

約数ペア:

[(1, 80428740), (2, 40214370), (3, 26809580), (4, 20107185), (5, 16085748), (6, 13404790), (7, 11489820), (10, 8042874), (12, 6702395), (14, 5744910), (15, 5361916), (20, 4021437), (21, 3829940), (28, 2872455), (30, 2680958), (35, 2297964), (42, 1914970), (60, 1340479), (70, 1148982), (84, 957485), (105, 765988), (140, 574491), (210, 382994), (420, 191497)]