20180400000

素因数分解:

$2^7\times 3^1\times 5^5\times {\mathrm{67}}^1\times {\mathrm{251}}^1$

素因数の和:360

約数の個数: 384

約数和(自身を含む): 68271880320

約数和(自身を除く): 48091480320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 67, 75, 80, 96, 100, 120, 125, 128, 134, 150, 160, 192, 200, 201, 240, 250, 251, 268, 300, 320, 335, 375, 384, 400, 402, 480, 500, 502, 536, 600, 625, 640, 670, 750, 753, 800, 804, 960, 1000, 1004, 1005, 1072, 1200, 1250, 1255, 1340, 1500, 1506, 1600, 1608, 1675, 1875, 1920, 2000, 2008, 2010, 2144, 2400, 2500, 2510, 2680, 3000, 3012, 3125, 3200, 3216, 3350, 3750, 3765, 4000, 4016, 4020, 4288, 4800, 5000, 5020, 5025, 5360, 6000, 6024, 6250, 6275, 6432, 6700, 7500, 7530, 8000, 8032, 8040, 8375, 8576, 9375, 9600, 10000, 10040, 10050, 10720, 12000, 12048, 12500, 12550, 12864, 13400, 15000, 15060, 16000, 16064, 16080, 16750, 16817, 18750, 18825, 20000, 20080, 20100, 21440, 24000, 24096, 25000, 25100, 25125, 25728, 26800, 30000, 30120, 31375, 32128, 32160, 33500, 33634, 37500, 37650, 40000, 40160, 40200, 41875, 42880, 48000, 48192, 50000, 50200, 50250, 50451, 53600, 60000, 60240, 62750, 64320, 67000, 67268, 75000, 75300, 80000, 80320, 80400, 83750, 84085, 94125, 96384, 100000, 100400, 100500, 100902, 107200, 120000, 120480, 125500, 125625, 128640, 134000, 134536, 150000, 150600, 156875, 160640, 160800, 167500, 168170, 188250, 200000, 200800, 201000, 201804, 209375, 214400, 240000, 240960, 251000, 251250, 252255, 268000, 269072, 300000, 301200, 313750, 321600, 335000, 336340, 376500, 400000, 401600, 402000, 403608, 418750, 420425, 470625, 481920, 502000, 502500, 504510, 536000, 538144, 600000, 602400, 627500, 628125, 643200, 670000, 672680, 753000, 784375, 803200, 804000, 807216, 837500, 840850, 941250, 1004000, 1005000, 1009020, 1072000, 1076288, 1200000, 1204800, 1255000, 1256250, 1261275, 1340000, 1345360, 1506000, 1568750, 1608000, 1614432, 1675000, 1681700, 1882500, 2008000, 2010000, 2018040, 2102125, 2152576, 2353125, 2409600, 2510000, 2512500, 2522550, 2680000, 2690720, 3012000, 3137500, 3216000, 3228864, 3350000, 3363400, 3765000, 4016000, 4020000, 4036080, 4204250, 4706250, 5020000, 5025000, 5045100, 5360000, 5381440, 6024000, 6275000, 6306375, 6457728, 6700000, 6726800, 7530000, 8040000, 8072160, 8408500, 9412500, 10040000, 10050000, 10090200, 10510625, 10762880, 12048000, 12550000, 12612750, 13400000, 13453600, 15060000, 16080000, 16144320, 16817000, 18825000, 20080000, 20100000, 20180400, 21021250, 25100000, 25225500, 26800000, 26907200, 30120000, 31531875, 32288640, 33634000, 37650000, 40200000, 40360800, 42042500, 50200000, 50451000, 52553125, 53814400, 60240000, 63063750, 67268000, 75300000, 80400000, 80721600, 84085000, 100400000, 100902000, 105106250, 126127500, 134536000, 150600000, 157659375, 161443200, 168170000, 201804000, 210212500, 252255000, 269072000, 301200000, 315318750, 336340000, 403608000, 420425000, 504510000, 630637500, 672680000, 807216000, 840850000, 1009020000, 1261275000, 1345360000, 1681700000, 2018040000, 2522550000, 3363400000, 4036080000, 5045100000, 6726800000, 10090200000, 20180400000]

約数ペア:

[(1, 20180400000), (2, 10090200000), (3, 6726800000), (4, 5045100000), (5, 4036080000), (6, 3363400000), (8, 2522550000), (10, 2018040000), (12, 1681700000), (15, 1345360000), (16, 1261275000), (20, 1009020000), (24, 840850000), (25, 807216000), (30, 672680000), (32, 630637500), (40, 504510000), (48, 420425000), (50, 403608000), (60, 336340000), (64, 315318750), (67, 301200000), (75, 269072000), (80, 252255000), (96, 210212500), (100, 201804000), (120, 168170000), (125, 161443200), (128, 157659375), (134, 150600000), (150, 134536000), (160, 126127500), (192, 105106250), (200, 100902000), (201, 100400000), (240, 84085000), (250, 80721600), (251, 80400000), (268, 75300000), (300, 67268000), (320, 63063750), (335, 60240000), (375, 53814400), (384, 52553125), (400, 50451000), (402, 50200000), (480, 42042500), (500, 40360800), (502, 40200000), (536, 37650000), (600, 33634000), (625, 32288640), (640, 31531875), (670, 30120000), (750, 26907200), (753, 26800000), (800, 25225500), (804, 25100000), (960, 21021250), (1000, 20180400), (1004, 20100000), (1005, 20080000), (1072, 18825000), (1200, 16817000), (1250, 16144320), (1255, 16080000), (1340, 15060000), (1500, 13453600), (1506, 13400000), (1600, 12612750), (1608, 12550000), (1675, 12048000), (1875, 10762880), (1920, 10510625), (2000, 10090200), (2008, 10050000), (2010, 10040000), (2144, 9412500), (2400, 8408500), (2500, 8072160), (2510, 8040000), (2680, 7530000), (3000, 6726800), (3012, 6700000), (3125, 6457728), (3200, 6306375), (3216, 6275000), (3350, 6024000), (3750, 5381440), (3765, 5360000), (4000, 5045100), (4016, 5025000), (4020, 5020000), (4288, 4706250), (4800, 4204250), (5000, 4036080), (5020, 4020000), (5025, 4016000), (5360, 3765000), (6000, 3363400), (6024, 3350000), (6250, 3228864), (6275, 3216000), (6432, 3137500), (6700, 3012000), (7500, 2690720), (7530, 2680000), (8000, 2522550), (8032, 2512500), (8040, 2510000), (8375, 2409600), (8576, 2353125), (9375, 2152576), (9600, 2102125), (10000, 2018040), (10040, 2010000), (10050, 2008000), (10720, 1882500), (12000, 1681700), (12048, 1675000), (12500, 1614432), (12550, 1608000), (12864, 1568750), (13400, 1506000), (15000, 1345360), (15060, 1340000), (16000, 1261275), (16064, 1256250), (16080, 1255000), (16750, 1204800), (16817, 1200000), (18750, 1076288), (18825, 1072000), (20000, 1009020), (20080, 1005000), (20100, 1004000), (21440, 941250), (24000, 840850), (24096, 837500), (25000, 807216), (25100, 804000), (25125, 803200), (25728, 784375), (26800, 753000), (30000, 672680), (30120, 670000), (31375, 643200), (32128, 628125), (32160, 627500), (33500, 602400), (33634, 600000), (37500, 538144), (37650, 536000), (40000, 504510), (40160, 502500), (40200, 502000), (41875, 481920), (42880, 470625), (48000, 420425), (48192, 418750), (50000, 403608), (50200, 402000), (50250, 401600), (50451, 400000), (53600, 376500), (60000, 336340), (60240, 335000), (62750, 321600), (64320, 313750), (67000, 301200), (67268, 300000), (75000, 269072), (75300, 268000), (80000, 252255), (80320, 251250), (80400, 251000), (83750, 240960), (84085, 240000), (94125, 214400), (96384, 209375), (100000, 201804), (100400, 201000), (100500, 200800), (100902, 200000), (107200, 188250), (120000, 168170), (120480, 167500), (125500, 160800), (125625, 160640), (128640, 156875), (134000, 150600), (134536, 150000)]