9900000

素因数分解:

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

素因数の和:52

約数の個数: 216

約数和(自身を含む): 38388168

約数和(自身を除く): 28488168

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 25, 30, 32, 33, 36, 40, 44, 45, 48, 50, 55, 60, 66, 72, 75, 80, 88, 90, 96, 99, 100, 110, 120, 125, 132, 144, 150, 160, 165, 176, 180, 198, 200, 220, 225, 240, 250, 264, 275, 288, 300, 330, 352, 360, 375, 396, 400, 440, 450, 480, 495, 500, 528, 550, 600, 625, 660, 720, 750, 792, 800, 825, 880, 900, 990, 1000, 1056, 1100, 1125, 1200, 1250, 1320, 1375, 1440, 1500, 1584, 1650, 1760, 1800, 1875, 1980, 2000, 2200, 2250, 2400, 2475, 2500, 2640, 2750, 3000, 3125, 3168, 3300, 3600, 3750, 3960, 4000, 4125, 4400, 4500, 4950, 5000, 5280, 5500, 5625, 6000, 6250, 6600, 6875, 7200, 7500, 7920, 8250, 8800, 9000, 9375, 9900, 10000, 11000, 11250, 12000, 12375, 12500, 13200, 13750, 15000, 15840, 16500, 18000, 18750, 19800, 20000, 20625, 22000, 22500, 24750, 25000, 26400, 27500, 28125, 30000, 33000, 34375, 36000, 37500, 39600, 41250, 44000, 45000, 49500, 50000, 55000, 56250, 60000, 61875, 66000, 68750, 75000, 79200, 82500, 90000, 99000, 100000, 103125, 110000, 112500, 123750, 132000, 137500, 150000, 165000, 180000, 198000, 206250, 220000, 225000, 247500, 275000, 300000, 309375, 330000, 396000, 412500, 450000, 495000, 550000, 618750, 660000, 825000, 900000, 990000, 1100000, 1237500, 1650000, 1980000, 2475000, 3300000, 4950000, 9900000]

約数ペア:

[(1, 9900000), (2, 4950000), (3, 3300000), (4, 2475000), (5, 1980000), (6, 1650000), (8, 1237500), (9, 1100000), (10, 990000), (11, 900000), (12, 825000), (15, 660000), (16, 618750), (18, 550000), (20, 495000), (22, 450000), (24, 412500), (25, 396000), (30, 330000), (32, 309375), (33, 300000), (36, 275000), (40, 247500), (44, 225000), (45, 220000), (48, 206250), (50, 198000), (55, 180000), (60, 165000), (66, 150000), (72, 137500), (75, 132000), (80, 123750), (88, 112500), (90, 110000), (96, 103125), (99, 100000), (100, 99000), (110, 90000), (120, 82500), (125, 79200), (132, 75000), (144, 68750), (150, 66000), (160, 61875), (165, 60000), (176, 56250), (180, 55000), (198, 50000), (200, 49500), (220, 45000), (225, 44000), (240, 41250), (250, 39600), (264, 37500), (275, 36000), (288, 34375), (300, 33000), (330, 30000), (352, 28125), (360, 27500), (375, 26400), (396, 25000), (400, 24750), (440, 22500), (450, 22000), (480, 20625), (495, 20000), (500, 19800), (528, 18750), (550, 18000), (600, 16500), (625, 15840), (660, 15000), (720, 13750), (750, 13200), (792, 12500), (800, 12375), (825, 12000), (880, 11250), (900, 11000), (990, 10000), (1000, 9900), (1056, 9375), (1100, 9000), (1125, 8800), (1200, 8250), (1250, 7920), (1320, 7500), (1375, 7200), (1440, 6875), (1500, 6600), (1584, 6250), (1650, 6000), (1760, 5625), (1800, 5500), (1875, 5280), (1980, 5000), (2000, 4950), (2200, 4500), (2250, 4400), (2400, 4125), (2475, 4000), (2500, 3960), (2640, 3750), (2750, 3600), (3000, 3300), (3125, 3168)]