18921600

素因数分解:

$2^7\times 3^4\times 5^2\times {\mathrm{73}}^1$

素因数の和:109

約数の個数: 240

約数和(自身を含む): 70781370

約数和(自身を除く): 51859770

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, 73, 75, 80, 81, 90, 96, 100, 108, 120, 128, 135, 144, 146, 150, 160, 162, 180, 192, 200, 216, 219, 225, 240, 270, 288, 292, 300, 320, 324, 360, 365, 384, 400, 405, 432, 438, 450, 480, 540, 576, 584, 600, 640, 648, 657, 675, 720, 730, 800, 810, 864, 876, 900, 960, 1080, 1095, 1152, 1168, 1200, 1296, 1314, 1350, 1440, 1460, 1600, 1620, 1728, 1752, 1800, 1825, 1920, 1971, 2025, 2160, 2190, 2336, 2400, 2592, 2628, 2700, 2880, 2920, 3200, 3240, 3285, 3456, 3504, 3600, 3650, 3942, 4050, 4320, 4380, 4672, 4800, 5184, 5256, 5400, 5475, 5760, 5840, 5913, 6480, 6570, 7008, 7200, 7300, 7884, 8100, 8640, 8760, 9344, 9600, 9855, 10368, 10512, 10800, 10950, 11680, 11826, 12960, 13140, 14016, 14400, 14600, 15768, 16200, 16425, 17280, 17520, 19710, 21024, 21600, 21900, 23360, 23652, 25920, 26280, 28032, 28800, 29200, 29565, 31536, 32400, 32850, 35040, 39420, 42048, 43200, 43800, 46720, 47304, 49275, 51840, 52560, 58400, 59130, 63072, 64800, 65700, 70080, 78840, 84096, 86400, 87600, 94608, 98550, 105120, 116800, 118260, 126144, 129600, 131400, 140160, 147825, 157680, 175200, 189216, 197100, 210240, 233600, 236520, 252288, 259200, 262800, 295650, 315360, 350400, 378432, 394200, 420480, 473040, 525600, 591300, 630720, 700800, 756864, 788400, 946080, 1051200, 1182600, 1261440, 1576800, 1892160, 2102400, 2365200, 3153600, 3784320, 4730400, 6307200, 9460800, 18921600]

約数ペア:

[(1, 18921600), (2, 9460800), (3, 6307200), (4, 4730400), (5, 3784320), (6, 3153600), (8, 2365200), (9, 2102400), (10, 1892160), (12, 1576800), (15, 1261440), (16, 1182600), (18, 1051200), (20, 946080), (24, 788400), (25, 756864), (27, 700800), (30, 630720), (32, 591300), (36, 525600), (40, 473040), (45, 420480), (48, 394200), (50, 378432), (54, 350400), (60, 315360), (64, 295650), (72, 262800), (73, 259200), (75, 252288), (80, 236520), (81, 233600), (90, 210240), (96, 197100), (100, 189216), (108, 175200), (120, 157680), (128, 147825), (135, 140160), (144, 131400), (146, 129600), (150, 126144), (160, 118260), (162, 116800), (180, 105120), (192, 98550), (200, 94608), (216, 87600), (219, 86400), (225, 84096), (240, 78840), (270, 70080), (288, 65700), (292, 64800), (300, 63072), (320, 59130), (324, 58400), (360, 52560), (365, 51840), (384, 49275), (400, 47304), (405, 46720), (432, 43800), (438, 43200), (450, 42048), (480, 39420), (540, 35040), (576, 32850), (584, 32400), (600, 31536), (640, 29565), (648, 29200), (657, 28800), (675, 28032), (720, 26280), (730, 25920), (800, 23652), (810, 23360), (864, 21900), (876, 21600), (900, 21024), (960, 19710), (1080, 17520), (1095, 17280), (1152, 16425), (1168, 16200), (1200, 15768), (1296, 14600), (1314, 14400), (1350, 14016), (1440, 13140), (1460, 12960), (1600, 11826), (1620, 11680), (1728, 10950), (1752, 10800), (1800, 10512), (1825, 10368), (1920, 9855), (1971, 9600), (2025, 9344), (2160, 8760), (2190, 8640), (2336, 8100), (2400, 7884), (2592, 7300), (2628, 7200), (2700, 7008), (2880, 6570), (2920, 6480), (3200, 5913), (3240, 5840), (3285, 5760), (3456, 5475), (3504, 5400), (3600, 5256), (3650, 5184), (3942, 4800), (4050, 4672), (4320, 4380)]