21956600

素因数分解:

$2^3\times 5^2\times {\mathrm{311}}^1\times {\mathrm{353}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 51358320

約数和(自身を除く): 29401720

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 311, 353, 622, 706, 1244, 1412, 1555, 1765, 2488, 2824, 3110, 3530, 6220, 7060, 7775, 8825, 12440, 14120, 15550, 17650, 31100, 35300, 62200, 70600, 109783, 219566, 439132, 548915, 878264, 1097830, 2195660, 2744575, 4391320, 5489150, 10978300, 21956600]

約数ペア:

[(1, 21956600), (2, 10978300), (4, 5489150), (5, 4391320), (8, 2744575), (10, 2195660), (20, 1097830), (25, 878264), (40, 548915), (50, 439132), (100, 219566), (200, 109783), (311, 70600), (353, 62200), (622, 35300), (706, 31100), (1244, 17650), (1412, 15550), (1555, 14120), (1765, 12440), (2488, 8825), (2824, 7775), (3110, 7060), (3530, 6220)]