81375000

素因数分解:

$2^3\times 3^1\times 5^6\times 7^1\times {\mathrm{31}}^1$

素因数の和:77

約数の個数: 224

約数和(自身を含む): 299996160

約数和(自身を除く): 218621160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 31, 35, 40, 42, 50, 56, 60, 62, 70, 75, 84, 93, 100, 105, 120, 124, 125, 140, 150, 155, 168, 175, 186, 200, 210, 217, 248, 250, 280, 300, 310, 350, 372, 375, 420, 434, 465, 500, 525, 600, 620, 625, 651, 700, 744, 750, 775, 840, 868, 875, 930, 1000, 1050, 1085, 1240, 1250, 1302, 1400, 1500, 1550, 1736, 1750, 1860, 1875, 2100, 2170, 2325, 2500, 2604, 2625, 3000, 3100, 3125, 3255, 3500, 3720, 3750, 3875, 4200, 4340, 4375, 4650, 5000, 5208, 5250, 5425, 6200, 6250, 6510, 7000, 7500, 7750, 8680, 8750, 9300, 9375, 10500, 10850, 11625, 12500, 13020, 13125, 15000, 15500, 15625, 16275, 17500, 18600, 18750, 19375, 21000, 21700, 21875, 23250, 25000, 26040, 26250, 27125, 31000, 31250, 32550, 35000, 37500, 38750, 43400, 43750, 46500, 46875, 52500, 54250, 58125, 62500, 65100, 65625, 75000, 77500, 81375, 87500, 93000, 93750, 96875, 105000, 108500, 109375, 116250, 125000, 130200, 131250, 135625, 155000, 162750, 175000, 187500, 193750, 217000, 218750, 232500, 262500, 271250, 290625, 325500, 328125, 375000, 387500, 406875, 437500, 465000, 484375, 525000, 542500, 581250, 651000, 656250, 678125, 775000, 813750, 875000, 968750, 1085000, 1162500, 1312500, 1356250, 1453125, 1627500, 1937500, 2034375, 2325000, 2625000, 2712500, 2906250, 3255000, 3390625, 3875000, 4068750, 5425000, 5812500, 6781250, 8137500, 10171875, 11625000, 13562500, 16275000, 20343750, 27125000, 40687500, 81375000]

約数ペア:

[(1, 81375000), (2, 40687500), (3, 27125000), (4, 20343750), (5, 16275000), (6, 13562500), (7, 11625000), (8, 10171875), (10, 8137500), (12, 6781250), (14, 5812500), (15, 5425000), (20, 4068750), (21, 3875000), (24, 3390625), (25, 3255000), (28, 2906250), (30, 2712500), (31, 2625000), (35, 2325000), (40, 2034375), (42, 1937500), (50, 1627500), (56, 1453125), (60, 1356250), (62, 1312500), (70, 1162500), (75, 1085000), (84, 968750), (93, 875000), (100, 813750), (105, 775000), (120, 678125), (124, 656250), (125, 651000), (140, 581250), (150, 542500), (155, 525000), (168, 484375), (175, 465000), (186, 437500), (200, 406875), (210, 387500), (217, 375000), (248, 328125), (250, 325500), (280, 290625), (300, 271250), (310, 262500), (350, 232500), (372, 218750), (375, 217000), (420, 193750), (434, 187500), (465, 175000), (500, 162750), (525, 155000), (600, 135625), (620, 131250), (625, 130200), (651, 125000), (700, 116250), (744, 109375), (750, 108500), (775, 105000), (840, 96875), (868, 93750), (875, 93000), (930, 87500), (1000, 81375), (1050, 77500), (1085, 75000), (1240, 65625), (1250, 65100), (1302, 62500), (1400, 58125), (1500, 54250), (1550, 52500), (1736, 46875), (1750, 46500), (1860, 43750), (1875, 43400), (2100, 38750), (2170, 37500), (2325, 35000), (2500, 32550), (2604, 31250), (2625, 31000), (3000, 27125), (3100, 26250), (3125, 26040), (3255, 25000), (3500, 23250), (3720, 21875), (3750, 21700), (3875, 21000), (4200, 19375), (4340, 18750), (4375, 18600), (4650, 17500), (5000, 16275), (5208, 15625), (5250, 15500), (5425, 15000), (6200, 13125), (6250, 13020), (6510, 12500), (7000, 11625), (7500, 10850), (7750, 10500), (8680, 9375), (8750, 9300)]