280280000

素因数分解:

$2^6\times 5^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1$

素因数の和:70

約数の個数: 420

約数和(自身を含む): 949814712

約数和(自身を除く): 669534712

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 25, 26, 28, 32, 35, 40, 44, 49, 50, 52, 55, 56, 64, 65, 70, 77, 80, 88, 91, 98, 100, 104, 110, 112, 125, 130, 140, 143, 154, 160, 175, 176, 182, 196, 200, 208, 220, 224, 245, 250, 260, 275, 280, 286, 308, 320, 325, 350, 352, 364, 385, 392, 400, 416, 440, 448, 455, 490, 500, 520, 539, 550, 560, 572, 616, 625, 637, 650, 700, 704, 715, 728, 770, 784, 800, 832, 875, 880, 910, 980, 1000, 1001, 1040, 1078, 1100, 1120, 1144, 1225, 1232, 1250, 1274, 1300, 1375, 1400, 1430, 1456, 1540, 1568, 1600, 1625, 1750, 1760, 1820, 1925, 1960, 2000, 2002, 2080, 2156, 2200, 2240, 2275, 2288, 2450, 2464, 2500, 2548, 2600, 2695, 2750, 2800, 2860, 2912, 3080, 3136, 3185, 3250, 3500, 3520, 3575, 3640, 3850, 3920, 4000, 4004, 4160, 4312, 4375, 4400, 4550, 4576, 4900, 4928, 5000, 5005, 5096, 5200, 5390, 5500, 5600, 5720, 5824, 6125, 6160, 6370, 6500, 6875, 7000, 7007, 7150, 7280, 7700, 7840, 8000, 8008, 8125, 8624, 8750, 8800, 9100, 9152, 9625, 9800, 10000, 10010, 10192, 10400, 10780, 11000, 11200, 11375, 11440, 12250, 12320, 12740, 13000, 13475, 13750, 14000, 14014, 14300, 14560, 15400, 15680, 15925, 16016, 16250, 17248, 17500, 17600, 17875, 18200, 19250, 19600, 20000, 20020, 20384, 20800, 21560, 22000, 22750, 22880, 24500, 24640, 25025, 25480, 26000, 26950, 27500, 28000, 28028, 28600, 29120, 30625, 30800, 31850, 32032, 32500, 34496, 35000, 35035, 35750, 36400, 38500, 39200, 40000, 40040, 40768, 43120, 44000, 45500, 45760, 48125, 49000, 50050, 50960, 52000, 53900, 55000, 56000, 56056, 56875, 57200, 61250, 61600, 63700, 64064, 65000, 67375, 70000, 70070, 71500, 72800, 77000, 78400, 79625, 80080, 86240, 88000, 89375, 91000, 96250, 98000, 100100, 101920, 104000, 107800, 110000, 112112, 113750, 114400, 122500, 123200, 125125, 127400, 130000, 134750, 140000, 140140, 143000, 145600, 154000, 159250, 160160, 172480, 175175, 178750, 182000, 192500, 196000, 200200, 203840, 215600, 220000, 224224, 227500, 228800, 245000, 250250, 254800, 260000, 269500, 280000, 280280, 286000, 308000, 318500, 320320, 336875, 350350, 357500, 364000, 385000, 392000, 398125, 400400, 431200, 440000, 448448, 455000, 490000, 500500, 509600, 520000, 539000, 560560, 572000, 616000, 625625, 637000, 673750, 700700, 715000, 728000, 770000, 796250, 800800, 862400, 875875, 910000, 980000, 1001000, 1019200, 1078000, 1121120, 1144000, 1251250, 1274000, 1347500, 1401400, 1430000, 1540000, 1592500, 1601600, 1751750, 1820000, 1960000, 2002000, 2156000, 2242240, 2502500, 2548000, 2695000, 2802800, 2860000, 3080000, 3185000, 3503500, 3640000, 4004000, 4312000, 4379375, 5005000, 5096000, 5390000, 5605600, 5720000, 6370000, 7007000, 8008000, 8758750, 10010000, 10780000, 11211200, 12740000, 14014000, 17517500, 20020000, 21560000, 25480000, 28028000, 35035000, 40040000, 56056000, 70070000, 140140000, 280280000]

約数ペア:

[(1, 280280000), (2, 140140000), (4, 70070000), (5, 56056000), (7, 40040000), (8, 35035000), (10, 28028000), (11, 25480000), (13, 21560000), (14, 20020000), (16, 17517500), (20, 14014000), (22, 12740000), (25, 11211200), (26, 10780000), (28, 10010000), (32, 8758750), (35, 8008000), (40, 7007000), (44, 6370000), (49, 5720000), (50, 5605600), (52, 5390000), (55, 5096000), (56, 5005000), (64, 4379375), (65, 4312000), (70, 4004000), (77, 3640000), (80, 3503500), (88, 3185000), (91, 3080000), (98, 2860000), (100, 2802800), (104, 2695000), (110, 2548000), (112, 2502500), (125, 2242240), (130, 2156000), (140, 2002000), (143, 1960000), (154, 1820000), (160, 1751750), (175, 1601600), (176, 1592500), (182, 1540000), (196, 1430000), (200, 1401400), (208, 1347500), (220, 1274000), (224, 1251250), (245, 1144000), (250, 1121120), (260, 1078000), (275, 1019200), (280, 1001000), (286, 980000), (308, 910000), (320, 875875), (325, 862400), (350, 800800), (352, 796250), (364, 770000), (385, 728000), (392, 715000), (400, 700700), (416, 673750), (440, 637000), (448, 625625), (455, 616000), (490, 572000), (500, 560560), (520, 539000), (539, 520000), (550, 509600), (560, 500500), (572, 490000), (616, 455000), (625, 448448), (637, 440000), (650, 431200), (700, 400400), (704, 398125), (715, 392000), (728, 385000), (770, 364000), (784, 357500), (800, 350350), (832, 336875), (875, 320320), (880, 318500), (910, 308000), (980, 286000), (1000, 280280), (1001, 280000), (1040, 269500), (1078, 260000), (1100, 254800), (1120, 250250), (1144, 245000), (1225, 228800), (1232, 227500), (1250, 224224), (1274, 220000), (1300, 215600), (1375, 203840), (1400, 200200), (1430, 196000), (1456, 192500), (1540, 182000), (1568, 178750), (1600, 175175), (1625, 172480), (1750, 160160), (1760, 159250), (1820, 154000), (1925, 145600), (1960, 143000), (2000, 140140), (2002, 140000), (2080, 134750), (2156, 130000), (2200, 127400), (2240, 125125), (2275, 123200), (2288, 122500), (2450, 114400), (2464, 113750), (2500, 112112), (2548, 110000), (2600, 107800), (2695, 104000), (2750, 101920), (2800, 100100), (2860, 98000), (2912, 96250), (3080, 91000), (3136, 89375), (3185, 88000), (3250, 86240), (3500, 80080), (3520, 79625), (3575, 78400), (3640, 77000), (3850, 72800), (3920, 71500), (4000, 70070), (4004, 70000), (4160, 67375), (4312, 65000), (4375, 64064), (4400, 63700), (4550, 61600), (4576, 61250), (4900, 57200), (4928, 56875), (5000, 56056), (5005, 56000), (5096, 55000), (5200, 53900), (5390, 52000), (5500, 50960), (5600, 50050), (5720, 49000), (5824, 48125), (6125, 45760), (6160, 45500), (6370, 44000), (6500, 43120), (6875, 40768), (7000, 40040), (7007, 40000), (7150, 39200), (7280, 38500), (7700, 36400), (7840, 35750), (8000, 35035), (8008, 35000), (8125, 34496), (8624, 32500), (8750, 32032), (8800, 31850), (9100, 30800), (9152, 30625), (9625, 29120), (9800, 28600), (10000, 28028), (10010, 28000), (10192, 27500), (10400, 26950), (10780, 26000), (11000, 25480), (11200, 25025), (11375, 24640), (11440, 24500), (12250, 22880), (12320, 22750), (12740, 22000), (13000, 21560), (13475, 20800), (13750, 20384), (14000, 20020), (14014, 20000), (14300, 19600), (14560, 19250), (15400, 18200), (15680, 17875), (15925, 17600), (16016, 17500), (16250, 17248)]