4400000

素因数分解:

$2^7\times 5^5\times {\mathrm{11}}^1$

素因数の和:50

約数の個数: 96

約数和(自身を含む): 11952360

約数和(自身を除く): 7552360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 80, 88, 100, 110, 125, 128, 160, 176, 200, 220, 250, 275, 320, 352, 400, 440, 500, 550, 625, 640, 704, 800, 880, 1000, 1100, 1250, 1375, 1408, 1600, 1760, 2000, 2200, 2500, 2750, 3125, 3200, 3520, 4000, 4400, 5000, 5500, 6250, 6875, 7040, 8000, 8800, 10000, 11000, 12500, 13750, 16000, 17600, 20000, 22000, 25000, 27500, 34375, 35200, 40000, 44000, 50000, 55000, 68750, 80000, 88000, 100000, 110000, 137500, 176000, 200000, 220000, 275000, 400000, 440000, 550000, 880000, 1100000, 2200000, 4400000]

約数ペア:

[(1, 4400000), (2, 2200000), (4, 1100000), (5, 880000), (8, 550000), (10, 440000), (11, 400000), (16, 275000), (20, 220000), (22, 200000), (25, 176000), (32, 137500), (40, 110000), (44, 100000), (50, 88000), (55, 80000), (64, 68750), (80, 55000), (88, 50000), (100, 44000), (110, 40000), (125, 35200), (128, 34375), (160, 27500), (176, 25000), (200, 22000), (220, 20000), (250, 17600), (275, 16000), (320, 13750), (352, 12500), (400, 11000), (440, 10000), (500, 8800), (550, 8000), (625, 7040), (640, 6875), (704, 6250), (800, 5500), (880, 5000), (1000, 4400), (1100, 4000), (1250, 3520), (1375, 3200), (1408, 3125), (1600, 2750), (1760, 2500), (2000, 2200)]