128640000

素因数分解:

$2^{10}\times 3^1\times 5^4\times {\mathrm{67}}^1$

素因数の和:110

約数の個数: 220

約数和(自身を含む): 434848304

約数和(自身を除く): 306208304

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 67, 75, 80, 96, 100, 120, 125, 128, 134, 150, 160, 192, 200, 201, 240, 250, 256, 268, 300, 320, 335, 375, 384, 400, 402, 480, 500, 512, 536, 600, 625, 640, 670, 750, 768, 800, 804, 960, 1000, 1005, 1024, 1072, 1200, 1250, 1280, 1340, 1500, 1536, 1600, 1608, 1675, 1875, 1920, 2000, 2010, 2144, 2400, 2500, 2560, 2680, 3000, 3072, 3200, 3216, 3350, 3750, 3840, 4000, 4020, 4288, 4800, 5000, 5025, 5120, 5360, 6000, 6400, 6432, 6700, 7500, 7680, 8000, 8040, 8375, 8576, 9600, 10000, 10050, 10720, 12000, 12800, 12864, 13400, 15000, 15360, 16000, 16080, 16750, 17152, 19200, 20000, 20100, 21440, 24000, 25125, 25600, 25728, 26800, 30000, 32000, 32160, 33500, 34304, 38400, 40000, 40200, 41875, 42880, 48000, 50250, 51456, 53600, 60000, 64000, 64320, 67000, 68608, 76800, 80000, 80400, 83750, 85760, 96000, 100500, 102912, 107200, 120000, 125625, 128000, 128640, 134000, 160000, 160800, 167500, 171520, 192000, 201000, 205824, 214400, 240000, 251250, 257280, 268000, 320000, 321600, 335000, 343040, 384000, 402000, 428800, 480000, 502500, 514560, 536000, 640000, 643200, 670000, 804000, 857600, 960000, 1005000, 1029120, 1072000, 1286400, 1340000, 1608000, 1715200, 1920000, 2010000, 2144000, 2572800, 2680000, 3216000, 4020000, 4288000, 5145600, 5360000, 6432000, 8040000, 8576000, 10720000, 12864000, 16080000, 21440000, 25728000, 32160000, 42880000, 64320000, 128640000]

約数ペア:

[(1, 128640000), (2, 64320000), (3, 42880000), (4, 32160000), (5, 25728000), (6, 21440000), (8, 16080000), (10, 12864000), (12, 10720000), (15, 8576000), (16, 8040000), (20, 6432000), (24, 5360000), (25, 5145600), (30, 4288000), (32, 4020000), (40, 3216000), (48, 2680000), (50, 2572800), (60, 2144000), (64, 2010000), (67, 1920000), (75, 1715200), (80, 1608000), (96, 1340000), (100, 1286400), (120, 1072000), (125, 1029120), (128, 1005000), (134, 960000), (150, 857600), (160, 804000), (192, 670000), (200, 643200), (201, 640000), (240, 536000), (250, 514560), (256, 502500), (268, 480000), (300, 428800), (320, 402000), (335, 384000), (375, 343040), (384, 335000), (400, 321600), (402, 320000), (480, 268000), (500, 257280), (512, 251250), (536, 240000), (600, 214400), (625, 205824), (640, 201000), (670, 192000), (750, 171520), (768, 167500), (800, 160800), (804, 160000), (960, 134000), (1000, 128640), (1005, 128000), (1024, 125625), (1072, 120000), (1200, 107200), (1250, 102912), (1280, 100500), (1340, 96000), (1500, 85760), (1536, 83750), (1600, 80400), (1608, 80000), (1675, 76800), (1875, 68608), (1920, 67000), (2000, 64320), (2010, 64000), (2144, 60000), (2400, 53600), (2500, 51456), (2560, 50250), (2680, 48000), (3000, 42880), (3072, 41875), (3200, 40200), (3216, 40000), (3350, 38400), (3750, 34304), (3840, 33500), (4000, 32160), (4020, 32000), (4288, 30000), (4800, 26800), (5000, 25728), (5025, 25600), (5120, 25125), (5360, 24000), (6000, 21440), (6400, 20100), (6432, 20000), (6700, 19200), (7500, 17152), (7680, 16750), (8000, 16080), (8040, 16000), (8375, 15360), (8576, 15000), (9600, 13400), (10000, 12864), (10050, 12800), (10720, 12000)]