21072000

素因数分解:

$2^7\times 3^1\times 5^3\times {\mathrm{439}}^1$

素因数の和:471

約数の個数: 128

約数和(自身を含む): 70012800

約数和(自身を除く): 48940800

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, 439, 480, 500, 600, 640, 750, 800, 878, 960, 1000, 1200, 1317, 1500, 1600, 1756, 1920, 2000, 2195, 2400, 2634, 3000, 3200, 3512, 4000, 4390, 4800, 5268, 6000, 6585, 7024, 8000, 8780, 9600, 10536, 10975, 12000, 13170, 14048, 16000, 17560, 21072, 21950, 24000, 26340, 28096, 32925, 35120, 42144, 43900, 48000, 52680, 54875, 56192, 65850, 70240, 84288, 87800, 105360, 109750, 131700, 140480, 164625, 168576, 175600, 210720, 219500, 263400, 280960, 329250, 351200, 421440, 439000, 526800, 658500, 702400, 842880, 878000, 1053600, 1317000, 1404800, 1756000, 2107200, 2634000, 3512000, 4214400, 5268000, 7024000, 10536000, 21072000]

約数ペア:

[(1, 21072000), (2, 10536000), (3, 7024000), (4, 5268000), (5, 4214400), (6, 3512000), (8, 2634000), (10, 2107200), (12, 1756000), (15, 1404800), (16, 1317000), (20, 1053600), (24, 878000), (25, 842880), (30, 702400), (32, 658500), (40, 526800), (48, 439000), (50, 421440), (60, 351200), (64, 329250), (75, 280960), (80, 263400), (96, 219500), (100, 210720), (120, 175600), (125, 168576), (128, 164625), (150, 140480), (160, 131700), (192, 109750), (200, 105360), (240, 87800), (250, 84288), (300, 70240), (320, 65850), (375, 56192), (384, 54875), (400, 52680), (439, 48000), (480, 43900), (500, 42144), (600, 35120), (640, 32925), (750, 28096), (800, 26340), (878, 24000), (960, 21950), (1000, 21072), (1200, 17560), (1317, 16000), (1500, 14048), (1600, 13170), (1756, 12000), (1920, 10975), (2000, 10536), (2195, 9600), (2400, 8780), (2634, 8000), (3000, 7024), (3200, 6585), (3512, 6000), (4000, 5268), (4390, 4800)]