8100000

素因数分解:

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

素因数の和:47

約数の個数: 180

約数和(自身を含む): 29775438

約数和(自身を除く): 21675438

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, 72, 75, 80, 81, 90, 96, 100, 108, 120, 125, 135, 144, 150, 160, 162, 180, 200, 216, 225, 240, 250, 270, 288, 300, 324, 360, 375, 400, 405, 432, 450, 480, 500, 540, 600, 625, 648, 675, 720, 750, 800, 810, 864, 900, 1000, 1080, 1125, 1200, 1250, 1296, 1350, 1440, 1500, 1620, 1800, 1875, 2000, 2025, 2160, 2250, 2400, 2500, 2592, 2700, 3000, 3125, 3240, 3375, 3600, 3750, 4000, 4050, 4320, 4500, 5000, 5400, 5625, 6000, 6250, 6480, 6750, 7200, 7500, 8100, 9000, 9375, 10000, 10125, 10800, 11250, 12000, 12500, 12960, 13500, 15000, 16200, 16875, 18000, 18750, 20000, 20250, 21600, 22500, 25000, 27000, 28125, 30000, 32400, 33750, 36000, 37500, 40500, 45000, 50000, 50625, 54000, 56250, 60000, 64800, 67500, 75000, 81000, 84375, 90000, 100000, 101250, 108000, 112500, 135000, 150000, 162000, 168750, 180000, 202500, 225000, 253125, 270000, 300000, 324000, 337500, 405000, 450000, 506250, 540000, 675000, 810000, 900000, 1012500, 1350000, 1620000, 2025000, 2700000, 4050000, 8100000]

約数ペア:

[(1, 8100000), (2, 4050000), (3, 2700000), (4, 2025000), (5, 1620000), (6, 1350000), (8, 1012500), (9, 900000), (10, 810000), (12, 675000), (15, 540000), (16, 506250), (18, 450000), (20, 405000), (24, 337500), (25, 324000), (27, 300000), (30, 270000), (32, 253125), (36, 225000), (40, 202500), (45, 180000), (48, 168750), (50, 162000), (54, 150000), (60, 135000), (72, 112500), (75, 108000), (80, 101250), (81, 100000), (90, 90000), (96, 84375), (100, 81000), (108, 75000), (120, 67500), (125, 64800), (135, 60000), (144, 56250), (150, 54000), (160, 50625), (162, 50000), (180, 45000), (200, 40500), (216, 37500), (225, 36000), (240, 33750), (250, 32400), (270, 30000), (288, 28125), (300, 27000), (324, 25000), (360, 22500), (375, 21600), (400, 20250), (405, 20000), (432, 18750), (450, 18000), (480, 16875), (500, 16200), (540, 15000), (600, 13500), (625, 12960), (648, 12500), (675, 12000), (720, 11250), (750, 10800), (800, 10125), (810, 10000), (864, 9375), (900, 9000), (1000, 8100), (1080, 7500), (1125, 7200), (1200, 6750), (1250, 6480), (1296, 6250), (1350, 6000), (1440, 5625), (1500, 5400), (1620, 5000), (1800, 4500), (1875, 4320), (2000, 4050), (2025, 4000), (2160, 3750), (2250, 3600), (2400, 3375), (2500, 3240), (2592, 3125), (2700, 3000)]