990000

素因数分解:

$2^4\times 3^2\times 5^4\times {\mathrm{11}}^1$

素因数の和:45

約数の個数: 150

約数和(自身を含む): 3776916

約数和(自身を除く): 2786916

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 25, 30, 33, 36, 40, 44, 45, 48, 50, 55, 60, 66, 72, 75, 80, 88, 90, 99, 100, 110, 120, 125, 132, 144, 150, 165, 176, 180, 198, 200, 220, 225, 240, 250, 264, 275, 300, 330, 360, 375, 396, 400, 440, 450, 495, 500, 528, 550, 600, 625, 660, 720, 750, 792, 825, 880, 900, 990, 1000, 1100, 1125, 1200, 1250, 1320, 1375, 1500, 1584, 1650, 1800, 1875, 1980, 2000, 2200, 2250, 2475, 2500, 2640, 2750, 3000, 3300, 3600, 3750, 3960, 4125, 4400, 4500, 4950, 5000, 5500, 5625, 6000, 6600, 6875, 7500, 7920, 8250, 9000, 9900, 10000, 11000, 11250, 12375, 13200, 13750, 15000, 16500, 18000, 19800, 20625, 22000, 22500, 24750, 27500, 30000, 33000, 39600, 41250, 45000, 49500, 55000, 61875, 66000, 82500, 90000, 99000, 110000, 123750, 165000, 198000, 247500, 330000, 495000, 990000]

約数ペア:

[(1, 990000), (2, 495000), (3, 330000), (4, 247500), (5, 198000), (6, 165000), (8, 123750), (9, 110000), (10, 99000), (11, 90000), (12, 82500), (15, 66000), (16, 61875), (18, 55000), (20, 49500), (22, 45000), (24, 41250), (25, 39600), (30, 33000), (33, 30000), (36, 27500), (40, 24750), (44, 22500), (45, 22000), (48, 20625), (50, 19800), (55, 18000), (60, 16500), (66, 15000), (72, 13750), (75, 13200), (80, 12375), (88, 11250), (90, 11000), (99, 10000), (100, 9900), (110, 9000), (120, 8250), (125, 7920), (132, 7500), (144, 6875), (150, 6600), (165, 6000), (176, 5625), (180, 5500), (198, 5000), (200, 4950), (220, 4500), (225, 4400), (240, 4125), (250, 3960), (264, 3750), (275, 3600), (300, 3300), (330, 3000), (360, 2750), (375, 2640), (396, 2500), (400, 2475), (440, 2250), (450, 2200), (495, 2000), (500, 1980), (528, 1875), (550, 1800), (600, 1650), (625, 1584), (660, 1500), (720, 1375), (750, 1320), (792, 1250), (825, 1200), (880, 1125), (900, 1100), (990, 1000)]