80640000

素因数分解:

$2^{11}\times 3^2\times 5^4\times 7^1$

素因数の和:55

約数の個数: 360

約数和(自身を含む): 332612280

約数和(自身を除く): 251972280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 28, 30, 32, 35, 36, 40, 42, 45, 48, 50, 56, 60, 63, 64, 70, 72, 75, 80, 84, 90, 96, 100, 105, 112, 120, 125, 126, 128, 140, 144, 150, 160, 168, 175, 180, 192, 200, 210, 224, 225, 240, 250, 252, 256, 280, 288, 300, 315, 320, 336, 350, 360, 375, 384, 400, 420, 448, 450, 480, 500, 504, 512, 525, 560, 576, 600, 625, 630, 640, 672, 700, 720, 750, 768, 800, 840, 875, 896, 900, 960, 1000, 1008, 1024, 1050, 1120, 1125, 1152, 1200, 1250, 1260, 1280, 1344, 1400, 1440, 1500, 1536, 1575, 1600, 1680, 1750, 1792, 1800, 1875, 1920, 2000, 2016, 2048, 2100, 2240, 2250, 2304, 2400, 2500, 2520, 2560, 2625, 2688, 2800, 2880, 3000, 3072, 3150, 3200, 3360, 3500, 3584, 3600, 3750, 3840, 4000, 4032, 4200, 4375, 4480, 4500, 4608, 4800, 5000, 5040, 5120, 5250, 5376, 5600, 5625, 5760, 6000, 6144, 6300, 6400, 6720, 7000, 7168, 7200, 7500, 7680, 7875, 8000, 8064, 8400, 8750, 8960, 9000, 9216, 9600, 10000, 10080, 10240, 10500, 10752, 11200, 11250, 11520, 12000, 12600, 12800, 13125, 13440, 14000, 14336, 14400, 15000, 15360, 15750, 16000, 16128, 16800, 17500, 17920, 18000, 18432, 19200, 20000, 20160, 21000, 21504, 22400, 22500, 23040, 24000, 25200, 25600, 26250, 26880, 28000, 28800, 30000, 30720, 31500, 32000, 32256, 33600, 35000, 35840, 36000, 38400, 39375, 40000, 40320, 42000, 43008, 44800, 45000, 46080, 48000, 50400, 51200, 52500, 53760, 56000, 57600, 60000, 63000, 64000, 64512, 67200, 70000, 71680, 72000, 76800, 78750, 80000, 80640, 84000, 89600, 90000, 92160, 96000, 100800, 105000, 107520, 112000, 115200, 120000, 126000, 128000, 129024, 134400, 140000, 144000, 153600, 157500, 160000, 161280, 168000, 179200, 180000, 192000, 201600, 210000, 215040, 224000, 230400, 240000, 252000, 256000, 268800, 280000, 288000, 315000, 320000, 322560, 336000, 358400, 360000, 384000, 403200, 420000, 448000, 460800, 480000, 504000, 537600, 560000, 576000, 630000, 640000, 645120, 672000, 720000, 768000, 806400, 840000, 896000, 960000, 1008000, 1075200, 1120000, 1152000, 1260000, 1280000, 1344000, 1440000, 1612800, 1680000, 1792000, 1920000, 2016000, 2240000, 2304000, 2520000, 2688000, 2880000, 3225600, 3360000, 3840000, 4032000, 4480000, 5040000, 5376000, 5760000, 6720000, 8064000, 8960000, 10080000, 11520000, 13440000, 16128000, 20160000, 26880000, 40320000, 80640000]

約数ペア:

[(1, 80640000), (2, 40320000), (3, 26880000), (4, 20160000), (5, 16128000), (6, 13440000), (7, 11520000), (8, 10080000), (9, 8960000), (10, 8064000), (12, 6720000), (14, 5760000), (15, 5376000), (16, 5040000), (18, 4480000), (20, 4032000), (21, 3840000), (24, 3360000), (25, 3225600), (28, 2880000), (30, 2688000), (32, 2520000), (35, 2304000), (36, 2240000), (40, 2016000), (42, 1920000), (45, 1792000), (48, 1680000), (50, 1612800), (56, 1440000), (60, 1344000), (63, 1280000), (64, 1260000), (70, 1152000), (72, 1120000), (75, 1075200), (80, 1008000), (84, 960000), (90, 896000), (96, 840000), (100, 806400), (105, 768000), (112, 720000), (120, 672000), (125, 645120), (126, 640000), (128, 630000), (140, 576000), (144, 560000), (150, 537600), (160, 504000), (168, 480000), (175, 460800), (180, 448000), (192, 420000), (200, 403200), (210, 384000), (224, 360000), (225, 358400), (240, 336000), (250, 322560), (252, 320000), (256, 315000), (280, 288000), (288, 280000), (300, 268800), (315, 256000), (320, 252000), (336, 240000), (350, 230400), (360, 224000), (375, 215040), (384, 210000), (400, 201600), (420, 192000), (448, 180000), (450, 179200), (480, 168000), (500, 161280), (504, 160000), (512, 157500), (525, 153600), (560, 144000), (576, 140000), (600, 134400), (625, 129024), (630, 128000), (640, 126000), (672, 120000), (700, 115200), (720, 112000), (750, 107520), (768, 105000), (800, 100800), (840, 96000), (875, 92160), (896, 90000), (900, 89600), (960, 84000), (1000, 80640), (1008, 80000), (1024, 78750), (1050, 76800), (1120, 72000), (1125, 71680), (1152, 70000), (1200, 67200), (1250, 64512), (1260, 64000), (1280, 63000), (1344, 60000), (1400, 57600), (1440, 56000), (1500, 53760), (1536, 52500), (1575, 51200), (1600, 50400), (1680, 48000), (1750, 46080), (1792, 45000), (1800, 44800), (1875, 43008), (1920, 42000), (2000, 40320), (2016, 40000), (2048, 39375), (2100, 38400), (2240, 36000), (2250, 35840), (2304, 35000), (2400, 33600), (2500, 32256), (2520, 32000), (2560, 31500), (2625, 30720), (2688, 30000), (2800, 28800), (2880, 28000), (3000, 26880), (3072, 26250), (3150, 25600), (3200, 25200), (3360, 24000), (3500, 23040), (3584, 22500), (3600, 22400), (3750, 21504), (3840, 21000), (4000, 20160), (4032, 20000), (4200, 19200), (4375, 18432), (4480, 18000), (4500, 17920), (4608, 17500), (4800, 16800), (5000, 16128), (5040, 16000), (5120, 15750), (5250, 15360), (5376, 15000), (5600, 14400), (5625, 14336), (5760, 14000), (6000, 13440), (6144, 13125), (6300, 12800), (6400, 12600), (6720, 12000), (7000, 11520), (7168, 11250), (7200, 11200), (7500, 10752), (7680, 10500), (7875, 10240), (8000, 10080), (8064, 10000), (8400, 9600), (8750, 9216), (8960, 9000)]