8100000000

素因数分解:

$2^8\times 3^4\times 5^8$

素因数の和:68

約数の個数: 405

約数和(自身を含む): 30190902511

約数和(自身を除く): 22090902511

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, 64, 72, 75, 80, 81, 90, 96, 100, 108, 120, 125, 128, 135, 144, 150, 160, 162, 180, 192, 200, 216, 225, 240, 250, 256, 270, 288, 300, 320, 324, 360, 375, 384, 400, 405, 432, 450, 480, 500, 540, 576, 600, 625, 640, 648, 675, 720, 750, 768, 800, 810, 864, 900, 960, 1000, 1080, 1125, 1152, 1200, 1250, 1280, 1296, 1350, 1440, 1500, 1600, 1620, 1728, 1800, 1875, 1920, 2000, 2025, 2160, 2250, 2304, 2400, 2500, 2592, 2700, 2880, 3000, 3125, 3200, 3240, 3375, 3456, 3600, 3750, 3840, 4000, 4050, 4320, 4500, 4800, 5000, 5184, 5400, 5625, 5760, 6000, 6250, 6400, 6480, 6750, 6912, 7200, 7500, 8000, 8100, 8640, 9000, 9375, 9600, 10000, 10125, 10368, 10800, 11250, 11520, 12000, 12500, 12960, 13500, 14400, 15000, 15625, 16000, 16200, 16875, 17280, 18000, 18750, 19200, 20000, 20250, 20736, 21600, 22500, 24000, 25000, 25920, 27000, 28125, 28800, 30000, 31250, 32000, 32400, 33750, 34560, 36000, 37500, 40000, 40500, 43200, 45000, 46875, 48000, 50000, 50625, 51840, 54000, 56250, 57600, 60000, 62500, 64800, 67500, 72000, 75000, 78125, 80000, 81000, 84375, 86400, 90000, 93750, 96000, 100000, 101250, 103680, 108000, 112500, 120000, 125000, 129600, 135000, 140625, 144000, 150000, 156250, 160000, 162000, 168750, 172800, 180000, 187500, 200000, 202500, 216000, 225000, 234375, 240000, 250000, 253125, 259200, 270000, 281250, 288000, 300000, 312500, 324000, 337500, 360000, 375000, 390625, 400000, 405000, 421875, 432000, 450000, 468750, 480000, 500000, 506250, 518400, 540000, 562500, 600000, 625000, 648000, 675000, 703125, 720000, 750000, 781250, 800000, 810000, 843750, 864000, 900000, 937500, 1000000, 1012500, 1080000, 1125000, 1171875, 1200000, 1250000, 1265625, 1296000, 1350000, 1406250, 1440000, 1500000, 1562500, 1620000, 1687500, 1800000, 1875000, 2000000, 2025000, 2109375, 2160000, 2250000, 2343750, 2400000, 2500000, 2531250, 2592000, 2700000, 2812500, 3000000, 3125000, 3240000, 3375000, 3515625, 3600000, 3750000, 4000000, 4050000, 4218750, 4320000, 4500000, 4687500, 5000000, 5062500, 5400000, 5625000, 6000000, 6250000, 6328125, 6480000, 6750000, 7031250, 7200000, 7500000, 8100000, 8437500, 9000000, 9375000, 10000000, 10125000, 10546875, 10800000, 11250000, 12000000, 12500000, 12656250, 12960000, 13500000, 14062500, 15000000, 16200000, 16875000, 18000000, 18750000, 20000000, 20250000, 21093750, 21600000, 22500000, 25000000, 25312500, 27000000, 28125000, 30000000, 31640625, 32400000, 33750000, 36000000, 37500000, 40500000, 42187500, 45000000, 50000000, 50625000, 54000000, 56250000, 60000000, 63281250, 64800000, 67500000, 75000000, 81000000, 84375000, 90000000, 100000000, 101250000, 108000000, 112500000, 126562500, 135000000, 150000000, 162000000, 168750000, 180000000, 202500000, 225000000, 253125000, 270000000, 300000000, 324000000, 337500000, 405000000, 450000000, 506250000, 540000000, 675000000, 810000000, 900000000, 1012500000, 1350000000, 1620000000, 2025000000, 2700000000, 4050000000, 8100000000]

約数ペア:

[(1, 8100000000), (2, 4050000000), (3, 2700000000), (4, 2025000000), (5, 1620000000), (6, 1350000000), (8, 1012500000), (9, 900000000), (10, 810000000), (12, 675000000), (15, 540000000), (16, 506250000), (18, 450000000), (20, 405000000), (24, 337500000), (25, 324000000), (27, 300000000), (30, 270000000), (32, 253125000), (36, 225000000), (40, 202500000), (45, 180000000), (48, 168750000), (50, 162000000), (54, 150000000), (60, 135000000), (64, 126562500), (72, 112500000), (75, 108000000), (80, 101250000), (81, 100000000), (90, 90000000), (96, 84375000), (100, 81000000), (108, 75000000), (120, 67500000), (125, 64800000), (128, 63281250), (135, 60000000), (144, 56250000), (150, 54000000), (160, 50625000), (162, 50000000), (180, 45000000), (192, 42187500), (200, 40500000), (216, 37500000), (225, 36000000), (240, 33750000), (250, 32400000), (256, 31640625), (270, 30000000), (288, 28125000), (300, 27000000), (320, 25312500), (324, 25000000), (360, 22500000), (375, 21600000), (384, 21093750), (400, 20250000), (405, 20000000), (432, 18750000), (450, 18000000), (480, 16875000), (500, 16200000), (540, 15000000), (576, 14062500), (600, 13500000), (625, 12960000), (640, 12656250), (648, 12500000), (675, 12000000), (720, 11250000), (750, 10800000), (768, 10546875), (800, 10125000), (810, 10000000), (864, 9375000), (900, 9000000), (960, 8437500), (1000, 8100000), (1080, 7500000), (1125, 7200000), (1152, 7031250), (1200, 6750000), (1250, 6480000), (1280, 6328125), (1296, 6250000), (1350, 6000000), (1440, 5625000), (1500, 5400000), (1600, 5062500), (1620, 5000000), (1728, 4687500), (1800, 4500000), (1875, 4320000), (1920, 4218750), (2000, 4050000), (2025, 4000000), (2160, 3750000), (2250, 3600000), (2304, 3515625), (2400, 3375000), (2500, 3240000), (2592, 3125000), (2700, 3000000), (2880, 2812500), (3000, 2700000), (3125, 2592000), (3200, 2531250), (3240, 2500000), (3375, 2400000), (3456, 2343750), (3600, 2250000), (3750, 2160000), (3840, 2109375), (4000, 2025000), (4050, 2000000), (4320, 1875000), (4500, 1800000), (4800, 1687500), (5000, 1620000), (5184, 1562500), (5400, 1500000), (5625, 1440000), (5760, 1406250), (6000, 1350000), (6250, 1296000), (6400, 1265625), (6480, 1250000), (6750, 1200000), (6912, 1171875), (7200, 1125000), (7500, 1080000), (8000, 1012500), (8100, 1000000), (8640, 937500), (9000, 900000), (9375, 864000), (9600, 843750), (10000, 810000), (10125, 800000), (10368, 781250), (10800, 750000), (11250, 720000), (11520, 703125), (12000, 675000), (12500, 648000), (12960, 625000), (13500, 600000), (14400, 562500), (15000, 540000), (15625, 518400), (16000, 506250), (16200, 500000), (16875, 480000), (17280, 468750), (18000, 450000), (18750, 432000), (19200, 421875), (20000, 405000), (20250, 400000), (20736, 390625), (21600, 375000), (22500, 360000), (24000, 337500), (25000, 324000), (25920, 312500), (27000, 300000), (28125, 288000), (28800, 281250), (30000, 270000), (31250, 259200), (32000, 253125), (32400, 250000), (33750, 240000), (34560, 234375), (36000, 225000), (37500, 216000), (40000, 202500), (40500, 200000), (43200, 187500), (45000, 180000), (46875, 172800), (48000, 168750), (50000, 162000), (50625, 160000), (51840, 156250), (54000, 150000), (56250, 144000), (57600, 140625), (60000, 135000), (62500, 129600), (64800, 125000), (67500, 120000), (72000, 112500), (75000, 108000), (78125, 103680), (80000, 101250), (81000, 100000), (84375, 96000), (86400, 93750)]