2016347920

素因数分解:

$2^4\times 5^1\times {\mathrm{2557}}^1\times {\mathrm{9857}}^1$

素因数の和:12427

約数の個数: 40

約数和(自身を含む): 4690318104

約数和(自身を除く): 2673970184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2557, 5114, 9857, 10228, 12785, 19714, 20456, 25570, 39428, 40912, 49285, 51140, 78856, 98570, 102280, 157712, 197140, 204560, 394280, 788560, 25204349, 50408698, 100817396, 126021745, 201634792, 252043490, 403269584, 504086980, 1008173960, 2016347920]

約数ペア:

[(1, 2016347920), (2, 1008173960), (4, 504086980), (5, 403269584), (8, 252043490), (10, 201634792), (16, 126021745), (20, 100817396), (40, 50408698), (80, 25204349), (2557, 788560), (5114, 394280), (9857, 204560), (10228, 197140), (12785, 157712), (19714, 102280), (20456, 98570), (25570, 78856), (39428, 51140), (40912, 49285)]