20160000

素因数分解:

$2^9\times 3^2\times 5^4\times 7^1$

素因数の和:51

約数の個数: 300

約数和(自身を含む): 83092152

約数和(自身を除く): 62932152

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, 1050, 1120, 1125, 1152, 1200, 1250, 1260, 1280, 1344, 1400, 1440, 1500, 1536, 1575, 1600, 1680, 1750, 1792, 1800, 1875, 1920, 2000, 2016, 2100, 2240, 2250, 2304, 2400, 2500, 2520, 2560, 2625, 2688, 2800, 2880, 3000, 3150, 3200, 3360, 3500, 3584, 3600, 3750, 3840, 4000, 4032, 4200, 4375, 4480, 4500, 4608, 4800, 5000, 5040, 5250, 5376, 5600, 5625, 5760, 6000, 6300, 6400, 6720, 7000, 7200, 7500, 7680, 7875, 8000, 8064, 8400, 8750, 8960, 9000, 9600, 10000, 10080, 10500, 10752, 11200, 11250, 11520, 12000, 12600, 12800, 13125, 13440, 14000, 14400, 15000, 15750, 16000, 16128, 16800, 17500, 17920, 18000, 19200, 20000, 20160, 21000, 22400, 22500, 23040, 24000, 25200, 26250, 26880, 28000, 28800, 30000, 31500, 32000, 32256, 33600, 35000, 36000, 38400, 39375, 40000, 40320, 42000, 44800, 45000, 48000, 50400, 52500, 53760, 56000, 57600, 60000, 63000, 64000, 67200, 70000, 72000, 78750, 80000, 80640, 84000, 89600, 90000, 96000, 100800, 105000, 112000, 115200, 120000, 126000, 134400, 140000, 144000, 157500, 160000, 161280, 168000, 180000, 192000, 201600, 210000, 224000, 240000, 252000, 268800, 280000, 288000, 315000, 320000, 336000, 360000, 403200, 420000, 448000, 480000, 504000, 560000, 576000, 630000, 672000, 720000, 806400, 840000, 960000, 1008000, 1120000, 1260000, 1344000, 1440000, 1680000, 2016000, 2240000, 2520000, 2880000, 3360000, 4032000, 5040000, 6720000, 10080000, 20160000]

約数ペア:

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