About the Number

680910720

680910719 ← → 680910721

2進数表記:101000100101011101111110000000

漢数字表記:六億八千九十一万七百二十

素因数分解:

2 7 × 3 1 × 5 1 × 7 1 × 29 1 × 1747 1

素因数の和:1805
約数の個数: 256
約数和(自身を含む): 2567462400
約数和(自身を除く): 1886551680

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 29, 30, 32, 35, 40, 42, 48, 56, 58, 60, 64, 70, 80, 84, 87, 96, 105, 112, 116, 120, 128, 140, 145, 160, 168, 174, 192, 203, 210, 224, 232, 240, 280, 290, 320, 336, 348, 384, 406, 420, 435, 448, 464, 480, 560, 580, 609, 640, 672, 696, 812, 840, 870, 896, 928, 960, 1015, 1120, 1160, 1218, 1344, 1392, 1624, 1680, 1740, 1747, 1856, 1920, 2030, 2240, 2320, 2436, 2688, 2784, 3045, 3248, 3360, 3480, 3494, 3712, 4060, 4480, 4640, 4872, 5241, 5568, 6090, 6496, 6720, 6960, 6988, 8120, 8735, 9280, 9744, 10482, 11136, 12180, 12229, 12992, 13440, 13920, 13976, 16240, 17470, 18560, 19488, 20964, 24360, 24458, 25984, 26205, 27840, 27952, 32480, 34940, 36687, 38976, 41928, 48720, 48916, 50663, 52410, 55680, 55904, 61145, 64960, 69880, 73374, 77952, 83856, 97440, 97832, 101326, 104820, 111808, 122290, 129920, 139760, 146748, 151989, 167712, 183435, 194880, 195664, 202652, 209640, 223616, 244580, 253315, 279520, 293496, 303978, 335424, 354641, 366870, 389760, 391328, 405304, 419280, 489160, 506630, 559040, 586992, 607956, 670848, 709282, 733740, 759945, 782656, 810608, 838560, 978320, 1013260, 1063923, 1118080, 1173984, 1215912, 1418564, 1467480, 1519890, 1565312, 1621216, 1677120, 1773205, 1956640, 2026520, 2127846, 2347968, 2431824, 2837128, 2934960, 3039780, 3242432, 3354240, 3546410, 3913280, 4053040, 4255692, 4695936, 4863648, 5319615, 5674256, 5869920, 6079560, 6484864, 7092820, 7826560, 8106080, 8511384, 9727296, 10639230, 11348512, 11739840, 12159120, 14185640, 16212160, 17022768, 19454592, 21278460, 22697024, 23479680, 24318240, 28371280, 32424320, 34045536, 42556920, 45394048, 48636480, 56742560, 68091072, 85113840, 97272960, 113485120, 136182144, 170227680, 226970240, 340455360, 680910720]

約数ペア:
[(1, 680910720), (2, 340455360), (3, 226970240), (4, 170227680), (5, 136182144), (6, 113485120), (7, 97272960), (8, 85113840), (10, 68091072), (12, 56742560), (14, 48636480), (15, 45394048), (16, 42556920), (20, 34045536), (21, 32424320), (24, 28371280), (28, 24318240), (29, 23479680), (30, 22697024), (32, 21278460), (35, 19454592), (40, 17022768), (42, 16212160), (48, 14185640), (56, 12159120), (58, 11739840), (60, 11348512), (64, 10639230), (70, 9727296), (80, 8511384), (84, 8106080), (87, 7826560), (96, 7092820), (105, 6484864), (112, 6079560), (116, 5869920), (120, 5674256), (128, 5319615), (140, 4863648), (145, 4695936), (160, 4255692), (168, 4053040), (174, 3913280), (192, 3546410), (203, 3354240), (210, 3242432), (224, 3039780), (232, 2934960), (240, 2837128), (280, 2431824), (290, 2347968), (320, 2127846), (336, 2026520), (348, 1956640), (384, 1773205), (406, 1677120), (420, 1621216), (435, 1565312), (448, 1519890), (464, 1467480), (480, 1418564), (560, 1215912), (580, 1173984), (609, 1118080), (640, 1063923), (672, 1013260), (696, 978320), (812, 838560), (840, 810608), (870, 782656), (896, 759945), (928, 733740), (960, 709282), (1015, 670848), (1120, 607956), (1160, 586992), (1218, 559040), (1344, 506630), (1392, 489160), (1624, 419280), (1680, 405304), (1740, 391328), (1747, 389760), (1856, 366870), (1920, 354641), (2030, 335424), (2240, 303978), (2320, 293496), (2436, 279520), (2688, 253315), (2784, 244580), (3045, 223616), (3248, 209640), (3360, 202652), (3480, 195664), (3494, 194880), (3712, 183435), (4060, 167712), (4480, 151989), (4640, 146748), (4872, 139760), (5241, 129920), (5568, 122290), (6090, 111808), (6496, 104820), (6720, 101326), (6960, 97832), (6988, 97440), (8120, 83856), (8735, 77952), (9280, 73374), (9744, 69880), (10482, 64960), (11136, 61145), (12180, 55904), (12229, 55680), (12992, 52410), (13440, 50663), (13920, 48916), (13976, 48720), (16240, 41928), (17470, 38976), (18560, 36687), (19488, 34940), (20964, 32480), (24360, 27952), (24458, 27840), (25984, 26205)]

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