20520000

素因数分解:

$2^6\times 3^3\times 5^4\times {\mathrm{19}}^1$

素因数の和:60

約数の個数: 280

約数和(自身を含む): 79349600

約数和(自身を除く): 58829600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 25, 27, 30, 32, 36, 38, 40, 45, 48, 50, 54, 57, 60, 64, 72, 75, 76, 80, 90, 95, 96, 100, 108, 114, 120, 125, 135, 144, 150, 152, 160, 171, 180, 190, 192, 200, 216, 225, 228, 240, 250, 270, 285, 288, 300, 304, 320, 342, 360, 375, 380, 400, 432, 450, 456, 475, 480, 500, 513, 540, 570, 576, 600, 608, 625, 675, 684, 720, 750, 760, 800, 855, 864, 900, 912, 950, 960, 1000, 1026, 1080, 1125, 1140, 1200, 1216, 1250, 1350, 1368, 1425, 1440, 1500, 1520, 1600, 1710, 1728, 1800, 1824, 1875, 1900, 2000, 2052, 2160, 2250, 2280, 2375, 2400, 2500, 2565, 2700, 2736, 2850, 2880, 3000, 3040, 3375, 3420, 3600, 3648, 3750, 3800, 4000, 4104, 4275, 4320, 4500, 4560, 4750, 4800, 5000, 5130, 5400, 5472, 5625, 5700, 6000, 6080, 6750, 6840, 7125, 7200, 7500, 7600, 8000, 8208, 8550, 8640, 9000, 9120, 9500, 10000, 10260, 10800, 10944, 11250, 11400, 11875, 12000, 12825, 13500, 13680, 14250, 14400, 15000, 15200, 16416, 16875, 17100, 18000, 18240, 19000, 20000, 20520, 21375, 21600, 22500, 22800, 23750, 24000, 25650, 27000, 27360, 28500, 30000, 30400, 32832, 33750, 34200, 35625, 36000, 38000, 40000, 41040, 42750, 43200, 45000, 45600, 47500, 51300, 54000, 54720, 57000, 60000, 64125, 67500, 68400, 71250, 72000, 76000, 82080, 85500, 90000, 91200, 95000, 102600, 106875, 108000, 114000, 120000, 128250, 135000, 136800, 142500, 152000, 164160, 171000, 180000, 190000, 205200, 213750, 216000, 228000, 256500, 270000, 273600, 285000, 320625, 342000, 360000, 380000, 410400, 427500, 456000, 513000, 540000, 570000, 641250, 684000, 760000, 820800, 855000, 1026000, 1080000, 1140000, 1282500, 1368000, 1710000, 2052000, 2280000, 2565000, 3420000, 4104000, 5130000, 6840000, 10260000, 20520000]

約数ペア:

[(1, 20520000), (2, 10260000), (3, 6840000), (4, 5130000), (5, 4104000), (6, 3420000), (8, 2565000), (9, 2280000), (10, 2052000), (12, 1710000), (15, 1368000), (16, 1282500), (18, 1140000), (19, 1080000), (20, 1026000), (24, 855000), (25, 820800), (27, 760000), (30, 684000), (32, 641250), (36, 570000), (38, 540000), (40, 513000), (45, 456000), (48, 427500), (50, 410400), (54, 380000), (57, 360000), (60, 342000), (64, 320625), (72, 285000), (75, 273600), (76, 270000), (80, 256500), (90, 228000), (95, 216000), (96, 213750), (100, 205200), (108, 190000), (114, 180000), (120, 171000), (125, 164160), (135, 152000), (144, 142500), (150, 136800), (152, 135000), (160, 128250), (171, 120000), (180, 114000), (190, 108000), (192, 106875), (200, 102600), (216, 95000), (225, 91200), (228, 90000), (240, 85500), (250, 82080), (270, 76000), (285, 72000), (288, 71250), (300, 68400), (304, 67500), (320, 64125), (342, 60000), (360, 57000), (375, 54720), (380, 54000), (400, 51300), (432, 47500), (450, 45600), (456, 45000), (475, 43200), (480, 42750), (500, 41040), (513, 40000), (540, 38000), (570, 36000), (576, 35625), (600, 34200), (608, 33750), (625, 32832), (675, 30400), (684, 30000), (720, 28500), (750, 27360), (760, 27000), (800, 25650), (855, 24000), (864, 23750), (900, 22800), (912, 22500), (950, 21600), (960, 21375), (1000, 20520), (1026, 20000), (1080, 19000), (1125, 18240), (1140, 18000), (1200, 17100), (1216, 16875), (1250, 16416), (1350, 15200), (1368, 15000), (1425, 14400), (1440, 14250), (1500, 13680), (1520, 13500), (1600, 12825), (1710, 12000), (1728, 11875), (1800, 11400), (1824, 11250), (1875, 10944), (1900, 10800), (2000, 10260), (2052, 10000), (2160, 9500), (2250, 9120), (2280, 9000), (2375, 8640), (2400, 8550), (2500, 8208), (2565, 8000), (2700, 7600), (2736, 7500), (2850, 7200), (2880, 7125), (3000, 6840), (3040, 6750), (3375, 6080), (3420, 6000), (3600, 5700), (3648, 5625), (3750, 5472), (3800, 5400), (4000, 5130), (4104, 5000), (4275, 4800), (4320, 4750), (4500, 4560)]