1620000

素因数分解:

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

素因数の和:42

約数の個数: 150

約数和(自身を含む): 5953563

約数和(自身を除く): 4333563

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, 3240, 3375, 3600, 3750, 4000, 4050, 4320, 4500, 5000, 5400, 5625, 6000, 6480, 6750, 7200, 7500, 8100, 9000, 10000, 10125, 10800, 11250, 12000, 12960, 13500, 15000, 16200, 16875, 18000, 20000, 20250, 21600, 22500, 27000, 30000, 32400, 33750, 36000, 40500, 45000, 50625, 54000, 60000, 64800, 67500, 81000, 90000, 101250, 108000, 135000, 162000, 180000, 202500, 270000, 324000, 405000, 540000, 810000, 1620000]

約数ペア:

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