20736000

素因数分解:

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

素因数の和:49

約数の個数: 240

約数和(自身を含む): 77297220

約数和(自身を除く): 56561220

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 32, 36, 40, 45, 48, 50, 54, 60, 64, 72, 75, 80, 81, 90, 96, 100, 108, 120, 125, 128, 135, 144, 150, 160, 162, 180, 192, 200, 216, 225, 240, 250, 256, 270, 288, 300, 320, 324, 360, 375, 384, 400, 405, 432, 450, 480, 500, 512, 540, 576, 600, 640, 648, 675, 720, 750, 768, 800, 810, 864, 900, 960, 1000, 1024, 1080, 1125, 1152, 1200, 1280, 1296, 1350, 1440, 1500, 1536, 1600, 1620, 1728, 1800, 1920, 2000, 2025, 2048, 2160, 2250, 2304, 2400, 2560, 2592, 2700, 2880, 3000, 3072, 3200, 3240, 3375, 3456, 3600, 3840, 4000, 4050, 4320, 4500, 4608, 4800, 5120, 5184, 5400, 5760, 6000, 6144, 6400, 6480, 6750, 6912, 7200, 7680, 8000, 8100, 8640, 9000, 9216, 9600, 10125, 10240, 10368, 10800, 11520, 12000, 12800, 12960, 13500, 13824, 14400, 15360, 16000, 16200, 17280, 18000, 18432, 19200, 20250, 20736, 21600, 23040, 24000, 25600, 25920, 27000, 27648, 28800, 30720, 32000, 32400, 34560, 36000, 38400, 40500, 41472, 43200, 46080, 48000, 51200, 51840, 54000, 55296, 57600, 64000, 64800, 69120, 72000, 76800, 81000, 82944, 86400, 92160, 96000, 103680, 108000, 115200, 128000, 129600, 138240, 144000, 153600, 162000, 165888, 172800, 192000, 207360, 216000, 230400, 256000, 259200, 276480, 288000, 324000, 345600, 384000, 414720, 432000, 460800, 518400, 576000, 648000, 691200, 768000, 829440, 864000, 1036800, 1152000, 1296000, 1382400, 1728000, 2073600, 2304000, 2592000, 3456000, 4147200, 5184000, 6912000, 10368000, 20736000]

約数ペア:

[(1, 20736000), (2, 10368000), (3, 6912000), (4, 5184000), (5, 4147200), (6, 3456000), (8, 2592000), (9, 2304000), (10, 2073600), (12, 1728000), (15, 1382400), (16, 1296000), (18, 1152000), (20, 1036800), (24, 864000), (25, 829440), (27, 768000), (30, 691200), (32, 648000), (36, 576000), (40, 518400), (45, 460800), (48, 432000), (50, 414720), (54, 384000), (60, 345600), (64, 324000), (72, 288000), (75, 276480), (80, 259200), (81, 256000), (90, 230400), (96, 216000), (100, 207360), (108, 192000), (120, 172800), (125, 165888), (128, 162000), (135, 153600), (144, 144000), (150, 138240), (160, 129600), (162, 128000), (180, 115200), (192, 108000), (200, 103680), (216, 96000), (225, 92160), (240, 86400), (250, 82944), (256, 81000), (270, 76800), (288, 72000), (300, 69120), (320, 64800), (324, 64000), (360, 57600), (375, 55296), (384, 54000), (400, 51840), (405, 51200), (432, 48000), (450, 46080), (480, 43200), (500, 41472), (512, 40500), (540, 38400), (576, 36000), (600, 34560), (640, 32400), (648, 32000), (675, 30720), (720, 28800), (750, 27648), (768, 27000), (800, 25920), (810, 25600), (864, 24000), (900, 23040), (960, 21600), (1000, 20736), (1024, 20250), (1080, 19200), (1125, 18432), (1152, 18000), (1200, 17280), (1280, 16200), (1296, 16000), (1350, 15360), (1440, 14400), (1500, 13824), (1536, 13500), (1600, 12960), (1620, 12800), (1728, 12000), (1800, 11520), (1920, 10800), (2000, 10368), (2025, 10240), (2048, 10125), (2160, 9600), (2250, 9216), (2304, 9000), (2400, 8640), (2560, 8100), (2592, 8000), (2700, 7680), (2880, 7200), (3000, 6912), (3072, 6750), (3200, 6480), (3240, 6400), (3375, 6144), (3456, 6000), (3600, 5760), (3840, 5400), (4000, 5184), (4050, 5120), (4320, 4800), (4500, 4608)]