About the Number

1981259280

1981259279 ← → 1981259281

2進数表記:1110110000101111001111000010000

漢数字表記:十九億八千百二十五万九千二百八十

素因数分解:

2 4 × 3 2 × 5 1 × 7 1 × 11 1 × 13 1 × 2749 1

素因数の和:2799
約数の個数: 480
約数和(自身を含む): 8936928000
約数和(自身を除く): 6955668720

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 20, 21, 22, 24, 26, 28, 30, 33, 35, 36, 39, 40, 42, 44, 45, 48, 52, 55, 56, 60, 63, 65, 66, 70, 72, 77, 78, 80, 84, 88, 90, 91, 99, 104, 105, 110, 112, 117, 120, 126, 130, 132, 140, 143, 144, 154, 156, 165, 168, 176, 180, 182, 195, 198, 208, 210, 220, 231, 234, 240, 252, 260, 264, 273, 280, 286, 308, 312, 315, 330, 336, 360, 364, 385, 390, 396, 420, 429, 440, 455, 462, 468, 495, 504, 520, 528, 546, 560, 572, 585, 616, 624, 630, 660, 693, 715, 720, 728, 770, 780, 792, 819, 840, 858, 880, 910, 924, 936, 990, 1001, 1008, 1040, 1092, 1144, 1155, 1170, 1232, 1260, 1287, 1320, 1365, 1386, 1430, 1456, 1540, 1560, 1584, 1638, 1680, 1716, 1820, 1848, 1872, 1980, 2002, 2145, 2184, 2288, 2310, 2340, 2520, 2574, 2640, 2730, 2749, 2772, 2860, 3003, 3080, 3120, 3276, 3432, 3465, 3640, 3696, 3960, 4004, 4095, 4290, 4368, 4620, 4680, 5005, 5040, 5148, 5460, 5498, 5544, 5720, 6006, 6160, 6435, 6552, 6864, 6930, 7280, 7920, 8008, 8190, 8247, 8580, 9009, 9240, 9360, 10010, 10296, 10920, 10996, 11088, 11440, 12012, 12870, 13104, 13745, 13860, 15015, 16016, 16380, 16494, 17160, 18018, 18480, 19243, 20020, 20592, 21840, 21992, 24024, 24741, 25740, 27490, 27720, 30030, 30239, 32760, 32988, 34320, 35737, 36036, 38486, 40040, 41235, 43984, 45045, 48048, 49482, 51480, 54980, 55440, 57729, 60060, 60478, 65520, 65976, 71474, 72072, 76972, 80080, 82470, 90090, 90717, 96215, 98964, 102960, 107211, 109960, 115458, 120120, 120956, 123705, 131952, 142948, 144144, 151195, 153944, 164940, 173187, 178685, 180180, 181434, 192430, 197928, 211673, 214422, 219920, 230916, 240240, 241912, 247410, 250159, 272151, 285896, 288645, 302390, 307888, 321633, 329880, 346374, 357370, 360360, 362868, 384860, 393107, 395856, 423346, 428844, 453585, 461832, 483824, 494820, 500318, 536055, 544302, 571792, 577290, 604780, 635019, 643266, 659760, 692748, 714740, 720720, 725736, 750477, 769720, 786214, 846692, 857688, 865935, 907170, 923664, 989640, 1000636, 1058365, 1072110, 1088604, 1154580, 1179321, 1209560, 1250795, 1270038, 1286532, 1360755, 1385496, 1429480, 1451472, 1500954, 1539440, 1572428, 1608165, 1693384, 1715376, 1731870, 1814340, 1905057, 1965535, 1979280, 2001272, 2116730, 2144220, 2177208, 2251431, 2309160, 2358642, 2419120, 2501590, 2540076, 2573064, 2721510, 2751749, 2770992, 2858960, 3001908, 3144856, 3175095, 3216330, 3386768, 3463740, 3537963, 3628680, 3752385, 3810114, 3931070, 4002544, 4233460, 4288440, 4354416, 4502862, 4618320, 4717284, 5003180, 5080152, 5146128, 5443020, 5503498, 5896605, 6003816, 6289712, 6350190, 6432660, 6927480, 7075926, 7257360, 7504770, 7620228, 7862140, 8255247, 8466920, 8576880, 9005724, 9434568, 9525285, 10006360, 10160304, 10886040, 11006996, 11257155, 11793210, 12007632, 12700380, 12865320, 13758745, 13854960, 14151852, 15009540, 15240456, 15724280, 16510494, 16933840, 17689815, 18011448, 18869136, 19050570, 20012720, 21772080, 22013992, 22514310, 23586420, 24765741, 25400760, 25730640, 27517490, 28303704, 30019080, 30480912, 31448560, 33020988, 35379630, 36022896, 38101140, 41276235, 44027984, 45028620, 47172840, 49531482, 50801520, 55034980, 56607408, 60038160, 66041976, 70759260, 76202280, 82552470, 90057240, 94345680, 99062964, 110069960, 123828705, 132083952, 141518520, 152404560, 165104940, 180114480, 198125928, 220139920, 247657410, 283037040, 330209880, 396251856, 495314820, 660419760, 990629640, 1981259280]

約数ペア:
[(1, 1981259280), (2, 990629640), (3, 660419760), (4, 495314820), (5, 396251856), (6, 330209880), (7, 283037040), (8, 247657410), (9, 220139920), (10, 198125928), (11, 180114480), (12, 165104940), (13, 152404560), (14, 141518520), (15, 132083952), (16, 123828705), (18, 110069960), (20, 99062964), (21, 94345680), (22, 90057240), (24, 82552470), (26, 76202280), (28, 70759260), (30, 66041976), (33, 60038160), (35, 56607408), (36, 55034980), (39, 50801520), (40, 49531482), (42, 47172840), (44, 45028620), (45, 44027984), (48, 41276235), (52, 38101140), (55, 36022896), (56, 35379630), (60, 33020988), (63, 31448560), (65, 30480912), (66, 30019080), (70, 28303704), (72, 27517490), (77, 25730640), (78, 25400760), (80, 24765741), (84, 23586420), (88, 22514310), (90, 22013992), (91, 21772080), (99, 20012720), (104, 19050570), (105, 18869136), (110, 18011448), (112, 17689815), (117, 16933840), (120, 16510494), (126, 15724280), (130, 15240456), (132, 15009540), (140, 14151852), (143, 13854960), (144, 13758745), (154, 12865320), (156, 12700380), (165, 12007632), (168, 11793210), (176, 11257155), (180, 11006996), (182, 10886040), (195, 10160304), (198, 10006360), (208, 9525285), (210, 9434568), (220, 9005724), (231, 8576880), (234, 8466920), (240, 8255247), (252, 7862140), (260, 7620228), (264, 7504770), (273, 7257360), (280, 7075926), (286, 6927480), (308, 6432660), (312, 6350190), (315, 6289712), (330, 6003816), (336, 5896605), (360, 5503498), (364, 5443020), (385, 5146128), (390, 5080152), (396, 5003180), (420, 4717284), (429, 4618320), (440, 4502862), (455, 4354416), (462, 4288440), (468, 4233460), (495, 4002544), (504, 3931070), (520, 3810114), (528, 3752385), (546, 3628680), (560, 3537963), (572, 3463740), (585, 3386768), (616, 3216330), (624, 3175095), (630, 3144856), (660, 3001908), (693, 2858960), (715, 2770992), (720, 2751749), (728, 2721510), (770, 2573064), (780, 2540076), (792, 2501590), (819, 2419120), (840, 2358642), (858, 2309160), (880, 2251431), (910, 2177208), (924, 2144220), (936, 2116730), (990, 2001272), (1001, 1979280), (1008, 1965535), (1040, 1905057), (1092, 1814340), (1144, 1731870), (1155, 1715376), (1170, 1693384), (1232, 1608165), (1260, 1572428), (1287, 1539440), (1320, 1500954), (1365, 1451472), (1386, 1429480), (1430, 1385496), (1456, 1360755), (1540, 1286532), (1560, 1270038), (1584, 1250795), (1638, 1209560), (1680, 1179321), (1716, 1154580), (1820, 1088604), (1848, 1072110), (1872, 1058365), (1980, 1000636), (2002, 989640), (2145, 923664), (2184, 907170), (2288, 865935), (2310, 857688), (2340, 846692), (2520, 786214), (2574, 769720), (2640, 750477), (2730, 725736), (2749, 720720), (2772, 714740), (2860, 692748), (3003, 659760), (3080, 643266), (3120, 635019), (3276, 604780), (3432, 577290), (3465, 571792), (3640, 544302), (3696, 536055), (3960, 500318), (4004, 494820), (4095, 483824), (4290, 461832), (4368, 453585), (4620, 428844), (4680, 423346), (5005, 395856), (5040, 393107), (5148, 384860), (5460, 362868), (5498, 360360), (5544, 357370), (5720, 346374), (6006, 329880), (6160, 321633), (6435, 307888), (6552, 302390), (6864, 288645), (6930, 285896), (7280, 272151), (7920, 250159), (8008, 247410), (8190, 241912), (8247, 240240), (8580, 230916), (9009, 219920), (9240, 214422), (9360, 211673), (10010, 197928), (10296, 192430), (10920, 181434), (10996, 180180), (11088, 178685), (11440, 173187), (12012, 164940), (12870, 153944), (13104, 151195), (13745, 144144), (13860, 142948), (15015, 131952), (16016, 123705), (16380, 120956), (16494, 120120), (17160, 115458), (18018, 109960), (18480, 107211), (19243, 102960), (20020, 98964), (20592, 96215), (21840, 90717), (21992, 90090), (24024, 82470), (24741, 80080), (25740, 76972), (27490, 72072), (27720, 71474), (30030, 65976), (30239, 65520), (32760, 60478), (32988, 60060), (34320, 57729), (35737, 55440), (36036, 54980), (38486, 51480), (40040, 49482), (41235, 48048), (43984, 45045)]

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