21264000

素因数分解:

$2^7\times 3^1\times 5^3\times {\mathrm{443}}^1$

素因数の和:475

約数の個数: 128

約数和(自身を含む): 70649280

約数和(自身を除く): 49385280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 120, 125, 128, 150, 160, 192, 200, 240, 250, 300, 320, 375, 384, 400, 443, 480, 500, 600, 640, 750, 800, 886, 960, 1000, 1200, 1329, 1500, 1600, 1772, 1920, 2000, 2215, 2400, 2658, 3000, 3200, 3544, 4000, 4430, 4800, 5316, 6000, 6645, 7088, 8000, 8860, 9600, 10632, 11075, 12000, 13290, 14176, 16000, 17720, 21264, 22150, 24000, 26580, 28352, 33225, 35440, 42528, 44300, 48000, 53160, 55375, 56704, 66450, 70880, 85056, 88600, 106320, 110750, 132900, 141760, 166125, 170112, 177200, 212640, 221500, 265800, 283520, 332250, 354400, 425280, 443000, 531600, 664500, 708800, 850560, 886000, 1063200, 1329000, 1417600, 1772000, 2126400, 2658000, 3544000, 4252800, 5316000, 7088000, 10632000, 21264000]

約数ペア:

[(1, 21264000), (2, 10632000), (3, 7088000), (4, 5316000), (5, 4252800), (6, 3544000), (8, 2658000), (10, 2126400), (12, 1772000), (15, 1417600), (16, 1329000), (20, 1063200), (24, 886000), (25, 850560), (30, 708800), (32, 664500), (40, 531600), (48, 443000), (50, 425280), (60, 354400), (64, 332250), (75, 283520), (80, 265800), (96, 221500), (100, 212640), (120, 177200), (125, 170112), (128, 166125), (150, 141760), (160, 132900), (192, 110750), (200, 106320), (240, 88600), (250, 85056), (300, 70880), (320, 66450), (375, 56704), (384, 55375), (400, 53160), (443, 48000), (480, 44300), (500, 42528), (600, 35440), (640, 33225), (750, 28352), (800, 26580), (886, 24000), (960, 22150), (1000, 21264), (1200, 17720), (1329, 16000), (1500, 14176), (1600, 13290), (1772, 12000), (1920, 11075), (2000, 10632), (2215, 9600), (2400, 8860), (2658, 8000), (3000, 7088), (3200, 6645), (3544, 6000), (4000, 5316), (4430, 4800)]