31500000

素因数分解:

$2^5\times 3^2\times 5^6\times 7^1$

素因数の和:53

約数の個数: 252

約数和(自身を含む): 127967112

約数和(自身を除く): 96467112

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 28, 30, 32, 35, 36, 40, 42, 45, 48, 50, 56, 60, 63, 70, 72, 75, 80, 84, 90, 96, 100, 105, 112, 120, 125, 126, 140, 144, 150, 160, 168, 175, 180, 200, 210, 224, 225, 240, 250, 252, 280, 288, 300, 315, 336, 350, 360, 375, 400, 420, 450, 480, 500, 504, 525, 560, 600, 625, 630, 672, 700, 720, 750, 800, 840, 875, 900, 1000, 1008, 1050, 1120, 1125, 1200, 1250, 1260, 1400, 1440, 1500, 1575, 1680, 1750, 1800, 1875, 2000, 2016, 2100, 2250, 2400, 2500, 2520, 2625, 2800, 3000, 3125, 3150, 3360, 3500, 3600, 3750, 4000, 4200, 4375, 4500, 5000, 5040, 5250, 5600, 5625, 6000, 6250, 6300, 7000, 7200, 7500, 7875, 8400, 8750, 9000, 9375, 10000, 10080, 10500, 11250, 12000, 12500, 12600, 13125, 14000, 15000, 15625, 15750, 16800, 17500, 18000, 18750, 20000, 21000, 21875, 22500, 25000, 25200, 26250, 28000, 28125, 30000, 31250, 31500, 35000, 36000, 37500, 39375, 42000, 43750, 45000, 46875, 50000, 50400, 52500, 56250, 60000, 62500, 63000, 65625, 70000, 75000, 78750, 84000, 87500, 90000, 93750, 100000, 105000, 109375, 112500, 125000, 126000, 131250, 140000, 140625, 150000, 157500, 175000, 180000, 187500, 196875, 210000, 218750, 225000, 250000, 252000, 262500, 281250, 300000, 315000, 328125, 350000, 375000, 393750, 420000, 437500, 450000, 500000, 525000, 562500, 630000, 656250, 700000, 750000, 787500, 875000, 900000, 984375, 1050000, 1125000, 1260000, 1312500, 1500000, 1575000, 1750000, 1968750, 2100000, 2250000, 2625000, 3150000, 3500000, 3937500, 4500000, 5250000, 6300000, 7875000, 10500000, 15750000, 31500000]

約数ペア:

[(1, 31500000), (2, 15750000), (3, 10500000), (4, 7875000), (5, 6300000), (6, 5250000), (7, 4500000), (8, 3937500), (9, 3500000), (10, 3150000), (12, 2625000), (14, 2250000), (15, 2100000), (16, 1968750), (18, 1750000), (20, 1575000), (21, 1500000), (24, 1312500), (25, 1260000), (28, 1125000), (30, 1050000), (32, 984375), (35, 900000), (36, 875000), (40, 787500), (42, 750000), (45, 700000), (48, 656250), (50, 630000), (56, 562500), (60, 525000), (63, 500000), (70, 450000), (72, 437500), (75, 420000), (80, 393750), (84, 375000), (90, 350000), (96, 328125), (100, 315000), (105, 300000), (112, 281250), (120, 262500), (125, 252000), (126, 250000), (140, 225000), (144, 218750), (150, 210000), (160, 196875), (168, 187500), (175, 180000), (180, 175000), (200, 157500), (210, 150000), (224, 140625), (225, 140000), (240, 131250), (250, 126000), (252, 125000), (280, 112500), (288, 109375), (300, 105000), (315, 100000), (336, 93750), (350, 90000), (360, 87500), (375, 84000), (400, 78750), (420, 75000), (450, 70000), (480, 65625), (500, 63000), (504, 62500), (525, 60000), (560, 56250), (600, 52500), (625, 50400), (630, 50000), (672, 46875), (700, 45000), (720, 43750), (750, 42000), (800, 39375), (840, 37500), (875, 36000), (900, 35000), (1000, 31500), (1008, 31250), (1050, 30000), (1120, 28125), (1125, 28000), (1200, 26250), (1250, 25200), (1260, 25000), (1400, 22500), (1440, 21875), (1500, 21000), (1575, 20000), (1680, 18750), (1750, 18000), (1800, 17500), (1875, 16800), (2000, 15750), (2016, 15625), (2100, 15000), (2250, 14000), (2400, 13125), (2500, 12600), (2520, 12500), (2625, 12000), (2800, 11250), (3000, 10500), (3125, 10080), (3150, 10000), (3360, 9375), (3500, 9000), (3600, 8750), (3750, 8400), (4000, 7875), (4200, 7500), (4375, 7200), (4500, 7000), (5000, 6300), (5040, 6250), (5250, 6000), (5600, 5625)]