21120000

素因数分解:

$2^{10}\times 3^1\times 5^4\times {\mathrm{11}}^1$

素因数の和:54

約数の個数: 220

約数和(自身を含む): 76737936

約数和(自身を除く): 55617936

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 25, 30, 32, 33, 40, 44, 48, 50, 55, 60, 64, 66, 75, 80, 88, 96, 100, 110, 120, 125, 128, 132, 150, 160, 165, 176, 192, 200, 220, 240, 250, 256, 264, 275, 300, 320, 330, 352, 375, 384, 400, 440, 480, 500, 512, 528, 550, 600, 625, 640, 660, 704, 750, 768, 800, 825, 880, 960, 1000, 1024, 1056, 1100, 1200, 1250, 1280, 1320, 1375, 1408, 1500, 1536, 1600, 1650, 1760, 1875, 1920, 2000, 2112, 2200, 2400, 2500, 2560, 2640, 2750, 2816, 3000, 3072, 3200, 3300, 3520, 3750, 3840, 4000, 4125, 4224, 4400, 4800, 5000, 5120, 5280, 5500, 5632, 6000, 6400, 6600, 6875, 7040, 7500, 7680, 8000, 8250, 8448, 8800, 9600, 10000, 10560, 11000, 11264, 12000, 12800, 13200, 13750, 14080, 15000, 15360, 16000, 16500, 16896, 17600, 19200, 20000, 20625, 21120, 22000, 24000, 25600, 26400, 27500, 28160, 30000, 32000, 33000, 33792, 35200, 38400, 40000, 41250, 42240, 44000, 48000, 52800, 55000, 56320, 60000, 64000, 66000, 70400, 76800, 80000, 82500, 84480, 88000, 96000, 105600, 110000, 120000, 128000, 132000, 140800, 160000, 165000, 168960, 176000, 192000, 211200, 220000, 240000, 264000, 281600, 320000, 330000, 352000, 384000, 422400, 440000, 480000, 528000, 640000, 660000, 704000, 844800, 880000, 960000, 1056000, 1320000, 1408000, 1760000, 1920000, 2112000, 2640000, 3520000, 4224000, 5280000, 7040000, 10560000, 21120000]

約数ペア:

[(1, 21120000), (2, 10560000), (3, 7040000), (4, 5280000), (5, 4224000), (6, 3520000), (8, 2640000), (10, 2112000), (11, 1920000), (12, 1760000), (15, 1408000), (16, 1320000), (20, 1056000), (22, 960000), (24, 880000), (25, 844800), (30, 704000), (32, 660000), (33, 640000), (40, 528000), (44, 480000), (48, 440000), (50, 422400), (55, 384000), (60, 352000), (64, 330000), (66, 320000), (75, 281600), (80, 264000), (88, 240000), (96, 220000), (100, 211200), (110, 192000), (120, 176000), (125, 168960), (128, 165000), (132, 160000), (150, 140800), (160, 132000), (165, 128000), (176, 120000), (192, 110000), (200, 105600), (220, 96000), (240, 88000), (250, 84480), (256, 82500), (264, 80000), (275, 76800), (300, 70400), (320, 66000), (330, 64000), (352, 60000), (375, 56320), (384, 55000), (400, 52800), (440, 48000), (480, 44000), (500, 42240), (512, 41250), (528, 40000), (550, 38400), (600, 35200), (625, 33792), (640, 33000), (660, 32000), (704, 30000), (750, 28160), (768, 27500), (800, 26400), (825, 25600), (880, 24000), (960, 22000), (1000, 21120), (1024, 20625), (1056, 20000), (1100, 19200), (1200, 17600), (1250, 16896), (1280, 16500), (1320, 16000), (1375, 15360), (1408, 15000), (1500, 14080), (1536, 13750), (1600, 13200), (1650, 12800), (1760, 12000), (1875, 11264), (1920, 11000), (2000, 10560), (2112, 10000), (2200, 9600), (2400, 8800), (2500, 8448), (2560, 8250), (2640, 8000), (2750, 7680), (2816, 7500), (3000, 7040), (3072, 6875), (3200, 6600), (3300, 6400), (3520, 6000), (3750, 5632), (3840, 5500), (4000, 5280), (4125, 5120), (4224, 5000), (4400, 4800)]