256800000

素因数分解:

$2^8\times 3^1\times 5^5\times {\mathrm{107}}^1$

素因数の和:151

約数の個数: 216

約数和(自身を含む): 862257312

約数和(自身を除く): 605457312

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 107, 120, 125, 128, 150, 160, 192, 200, 214, 240, 250, 256, 300, 320, 321, 375, 384, 400, 428, 480, 500, 535, 600, 625, 640, 642, 750, 768, 800, 856, 960, 1000, 1070, 1200, 1250, 1280, 1284, 1500, 1600, 1605, 1712, 1875, 1920, 2000, 2140, 2400, 2500, 2568, 2675, 3000, 3125, 3200, 3210, 3424, 3750, 3840, 4000, 4280, 4800, 5000, 5136, 5350, 6000, 6250, 6400, 6420, 6848, 7500, 8000, 8025, 8560, 9375, 9600, 10000, 10272, 10700, 12000, 12500, 12840, 13375, 13696, 15000, 16000, 16050, 17120, 18750, 19200, 20000, 20544, 21400, 24000, 25000, 25680, 26750, 27392, 30000, 32000, 32100, 34240, 37500, 40000, 40125, 41088, 42800, 48000, 50000, 51360, 53500, 60000, 64200, 66875, 68480, 75000, 80000, 80250, 82176, 85600, 96000, 100000, 102720, 107000, 120000, 128400, 133750, 136960, 150000, 160000, 160500, 171200, 200000, 200625, 205440, 214000, 240000, 256800, 267500, 300000, 321000, 334375, 342400, 400000, 401250, 410880, 428000, 480000, 513600, 535000, 600000, 642000, 668750, 684800, 800000, 802500, 856000, 1003125, 1027200, 1070000, 1200000, 1284000, 1337500, 1605000, 1712000, 2006250, 2054400, 2140000, 2400000, 2568000, 2675000, 3210000, 3424000, 4012500, 4280000, 5136000, 5350000, 6420000, 8025000, 8560000, 10272000, 10700000, 12840000, 16050000, 17120000, 21400000, 25680000, 32100000, 42800000, 51360000, 64200000, 85600000, 128400000, 256800000]

約数ペア:

[(1, 256800000), (2, 128400000), (3, 85600000), (4, 64200000), (5, 51360000), (6, 42800000), (8, 32100000), (10, 25680000), (12, 21400000), (15, 17120000), (16, 16050000), (20, 12840000), (24, 10700000), (25, 10272000), (30, 8560000), (32, 8025000), (40, 6420000), (48, 5350000), (50, 5136000), (60, 4280000), (64, 4012500), (75, 3424000), (80, 3210000), (96, 2675000), (100, 2568000), (107, 2400000), (120, 2140000), (125, 2054400), (128, 2006250), (150, 1712000), (160, 1605000), (192, 1337500), (200, 1284000), (214, 1200000), (240, 1070000), (250, 1027200), (256, 1003125), (300, 856000), (320, 802500), (321, 800000), (375, 684800), (384, 668750), (400, 642000), (428, 600000), (480, 535000), (500, 513600), (535, 480000), (600, 428000), (625, 410880), (640, 401250), (642, 400000), (750, 342400), (768, 334375), (800, 321000), (856, 300000), (960, 267500), (1000, 256800), (1070, 240000), (1200, 214000), (1250, 205440), (1280, 200625), (1284, 200000), (1500, 171200), (1600, 160500), (1605, 160000), (1712, 150000), (1875, 136960), (1920, 133750), (2000, 128400), (2140, 120000), (2400, 107000), (2500, 102720), (2568, 100000), (2675, 96000), (3000, 85600), (3125, 82176), (3200, 80250), (3210, 80000), (3424, 75000), (3750, 68480), (3840, 66875), (4000, 64200), (4280, 60000), (4800, 53500), (5000, 51360), (5136, 50000), (5350, 48000), (6000, 42800), (6250, 41088), (6400, 40125), (6420, 40000), (6848, 37500), (7500, 34240), (8000, 32100), (8025, 32000), (8560, 30000), (9375, 27392), (9600, 26750), (10000, 25680), (10272, 25000), (10700, 24000), (12000, 21400), (12500, 20544), (12840, 20000), (13375, 19200), (13696, 18750), (15000, 17120), (16000, 16050)]