19440000

素因数分解:

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

素因数の和:49

約数の個数: 240

約数和(自身を含む): 72492420

約数和(自身を除く): 53052420

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, 243, 250, 270, 288, 300, 320, 324, 360, 375, 384, 400, 405, 432, 450, 480, 486, 500, 540, 576, 600, 625, 640, 648, 675, 720, 750, 800, 810, 864, 900, 960, 972, 1000, 1080, 1125, 1152, 1200, 1215, 1250, 1296, 1350, 1440, 1500, 1600, 1620, 1728, 1800, 1875, 1920, 1944, 2000, 2025, 2160, 2250, 2400, 2430, 2500, 2592, 2700, 2880, 3000, 3200, 3240, 3375, 3456, 3600, 3750, 3888, 4000, 4050, 4320, 4500, 4800, 4860, 5000, 5184, 5400, 5625, 5760, 6000, 6075, 6480, 6750, 7200, 7500, 7776, 8000, 8100, 8640, 9000, 9600, 9720, 10000, 10125, 10368, 10800, 11250, 12000, 12150, 12960, 13500, 14400, 15000, 15552, 16000, 16200, 16875, 17280, 18000, 19440, 20000, 20250, 21600, 22500, 24000, 24300, 25920, 27000, 28800, 30000, 30375, 31104, 32400, 33750, 36000, 38880, 40000, 40500, 43200, 45000, 48000, 48600, 50625, 51840, 54000, 60000, 60750, 64800, 67500, 72000, 77760, 80000, 81000, 86400, 90000, 97200, 101250, 108000, 120000, 121500, 129600, 135000, 144000, 151875, 155520, 162000, 180000, 194400, 202500, 216000, 240000, 243000, 259200, 270000, 303750, 324000, 360000, 388800, 405000, 432000, 486000, 540000, 607500, 648000, 720000, 777600, 810000, 972000, 1080000, 1215000, 1296000, 1620000, 1944000, 2160000, 2430000, 3240000, 3888000, 4860000, 6480000, 9720000, 19440000]

約数ペア:

[(1, 19440000), (2, 9720000), (3, 6480000), (4, 4860000), (5, 3888000), (6, 3240000), (8, 2430000), (9, 2160000), (10, 1944000), (12, 1620000), (15, 1296000), (16, 1215000), (18, 1080000), (20, 972000), (24, 810000), (25, 777600), (27, 720000), (30, 648000), (32, 607500), (36, 540000), (40, 486000), (45, 432000), (48, 405000), (50, 388800), (54, 360000), (60, 324000), (64, 303750), (72, 270000), (75, 259200), (80, 243000), (81, 240000), (90, 216000), (96, 202500), (100, 194400), (108, 180000), (120, 162000), (125, 155520), (128, 151875), (135, 144000), (144, 135000), (150, 129600), (160, 121500), (162, 120000), (180, 108000), (192, 101250), (200, 97200), (216, 90000), (225, 86400), (240, 81000), (243, 80000), (250, 77760), (270, 72000), (288, 67500), (300, 64800), (320, 60750), (324, 60000), (360, 54000), (375, 51840), (384, 50625), (400, 48600), (405, 48000), (432, 45000), (450, 43200), (480, 40500), (486, 40000), (500, 38880), (540, 36000), (576, 33750), (600, 32400), (625, 31104), (640, 30375), (648, 30000), (675, 28800), (720, 27000), (750, 25920), (800, 24300), (810, 24000), (864, 22500), (900, 21600), (960, 20250), (972, 20000), (1000, 19440), (1080, 18000), (1125, 17280), (1152, 16875), (1200, 16200), (1215, 16000), (1250, 15552), (1296, 15000), (1350, 14400), (1440, 13500), (1500, 12960), (1600, 12150), (1620, 12000), (1728, 11250), (1800, 10800), (1875, 10368), (1920, 10125), (1944, 10000), (2000, 9720), (2025, 9600), (2160, 9000), (2250, 8640), (2400, 8100), (2430, 8000), (2500, 7776), (2592, 7500), (2700, 7200), (2880, 6750), (3000, 6480), (3200, 6075), (3240, 6000), (3375, 5760), (3456, 5625), (3600, 5400), (3750, 5184), (3888, 5000), (4000, 4860), (4050, 4800), (4320, 4500)]