8521400

素因数分解:

$2^3\times 5^2\times {\mathrm{137}}^1\times {\mathrm{311}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 20021040

約数和(自身を除く): 11499640

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 137, 200, 274, 311, 548, 622, 685, 1096, 1244, 1370, 1555, 2488, 2740, 3110, 3425, 5480, 6220, 6850, 7775, 12440, 13700, 15550, 27400, 31100, 42607, 62200, 85214, 170428, 213035, 340856, 426070, 852140, 1065175, 1704280, 2130350, 4260700, 8521400]

約数ペア:

[(1, 8521400), (2, 4260700), (4, 2130350), (5, 1704280), (8, 1065175), (10, 852140), (20, 426070), (25, 340856), (40, 213035), (50, 170428), (100, 85214), (137, 62200), (200, 42607), (274, 31100), (311, 27400), (548, 15550), (622, 13700), (685, 12440), (1096, 7775), (1244, 6850), (1370, 6220), (1555, 5480), (2488, 3425), (2740, 3110)]