79999920

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:90

約数の個数: 640

約数和(自身を含む): 379975680

約数和(自身を除く): 299975760

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, 27, 28, 30, 33, 35, 36, 37, 39, 40, 42, 44, 45, 48, 52, 54, 55, 56, 60, 63, 65, 66, 70, 72, 74, 77, 78, 80, 84, 88, 90, 91, 99, 104, 105, 108, 110, 111, 112, 117, 120, 126, 130, 132, 135, 140, 143, 144, 148, 154, 156, 165, 168, 176, 180, 182, 185, 189, 195, 198, 208, 210, 216, 220, 222, 231, 234, 240, 252, 259, 260, 264, 270, 273, 280, 286, 296, 297, 308, 312, 315, 330, 333, 336, 351, 360, 364, 370, 378, 385, 390, 396, 407, 420, 429, 432, 440, 444, 455, 462, 468, 481, 495, 504, 518, 520, 528, 540, 546, 555, 560, 572, 585, 592, 594, 616, 624, 630, 660, 666, 693, 702, 715, 720, 728, 740, 756, 770, 777, 780, 792, 814, 819, 840, 858, 880, 888, 910, 924, 936, 945, 962, 990, 999, 1001, 1008, 1036, 1040, 1080, 1092, 1110, 1144, 1155, 1170, 1188, 1221, 1232, 1260, 1287, 1295, 1320, 1332, 1365, 1386, 1404, 1430, 1443, 1456, 1480, 1485, 1512, 1540, 1554, 1560, 1584, 1628, 1638, 1665, 1680, 1716, 1755, 1776, 1820, 1848, 1872, 1890, 1924, 1980, 1998, 2002, 2035, 2072, 2079, 2145, 2160, 2184, 2220, 2288, 2310, 2331, 2340, 2376, 2405, 2442, 2457, 2520, 2574, 2590, 2640, 2664, 2730, 2772, 2808, 2849, 2860, 2886, 2960, 2970, 3003, 3024, 3080, 3108, 3120, 3256, 3276, 3330, 3367, 3432, 3465, 3510, 3640, 3663, 3696, 3780, 3848, 3861, 3885, 3960, 3996, 4004, 4070, 4095, 4144, 4158, 4290, 4329, 4368, 4440, 4620, 4662, 4680, 4752, 4810, 4884, 4914, 4995, 5005, 5040, 5148, 5180, 5291, 5328, 5460, 5544, 5616, 5698, 5720, 5772, 5940, 6006, 6105, 6160, 6216, 6435, 6512, 6552, 6660, 6734, 6864, 6930, 6993, 7020, 7215, 7280, 7326, 7560, 7696, 7722, 7770, 7920, 7992, 8008, 8140, 8190, 8316, 8547, 8580, 8658, 8880, 9009, 9240, 9324, 9360, 9620, 9768, 9828, 9990, 10010, 10101, 10296, 10360, 10395, 10582, 10920, 10989, 11088, 11396, 11440, 11544, 11655, 11880, 12012, 12210, 12285, 12432, 12870, 12987, 13104, 13320, 13468, 13860, 13986, 14040, 14245, 14430, 14652, 15015, 15120, 15444, 15540, 15873, 15984, 16016, 16280, 16380, 16632, 16835, 17094, 17160, 17316, 18018, 18315, 18480, 18648, 19240, 19305, 19536, 19656, 19980, 20020, 20202, 20592, 20720, 20790, 21164, 21645, 21840, 21978, 22792, 23088, 23310, 23760, 24024, 24420, 24570, 25641, 25740, 25974, 26455, 26640, 26936, 27027, 27720, 27972, 28080, 28490, 28860, 29304, 30030, 30303, 30888, 31080, 31746, 32560, 32760, 33264, 33670, 34188, 34320, 34632, 34965, 36036, 36630, 37037, 37296, 38480, 38610, 39312, 39960, 40040, 40404, 41580, 42328, 42735, 43290, 43956, 45045, 45584, 46620, 47619, 48048, 48840, 49140, 50505, 51282, 51480, 51948, 52910, 53872, 54054, 54945, 55440, 55944, 56980, 57720, 58608, 60060, 60606, 61776, 62160, 63492, 64935, 65520, 67340, 68376, 69264, 69930, 72072, 73260, 74074, 76923, 77220, 79365, 79920, 80080, 80808, 83160, 84656, 85470, 86580, 87912, 90090, 90909, 93240, 95238, 97680, 98280, 101010, 102564, 102960, 103896, 105820, 108108, 109890, 111111, 111888, 113960, 115440, 120120, 121212, 126984, 128205, 129870, 134680, 135135, 136752, 139860, 142857, 144144, 146520, 148148, 151515, 153846, 154440, 158730, 161616, 166320, 170940, 173160, 175824, 180180, 181818, 185185, 186480, 190476, 196560, 202020, 205128, 207792, 211640, 216216, 219780, 222222, 227920, 238095, 240240, 242424, 253968, 256410, 259740, 269360, 270270, 279720, 285714, 293040, 296296, 303030, 307692, 308880, 317460, 333333, 341880, 346320, 360360, 363636, 370370, 380952, 384615, 404040, 410256, 423280, 432432, 439560, 444444, 454545, 476190, 484848, 512820, 519480, 540540, 555555, 559440, 571428, 592592, 606060, 615384, 634920, 666666, 683760, 714285, 720720, 727272, 740740, 761904, 769230, 808080, 879120, 888888, 909090, 952380, 999999, 1025640, 1038960, 1081080, 1111110, 1142856, 1212120, 1230768, 1269840, 1333332, 1428570, 1454544, 1481480, 1538460, 1666665, 1777776, 1818180, 1904760, 1999998, 2051280, 2162160, 2222220, 2285712, 2424240, 2666664, 2857140, 2962960, 3076920, 3333330, 3636360, 3809520, 3999996, 4444440, 4999995, 5333328, 5714280, 6153840, 6666660, 7272720, 7999992, 8888880, 9999990, 11428560, 13333320, 15999984, 19999980, 26666640, 39999960, 79999920]

約数ペア:

[(1, 79999920), (2, 39999960), (3, 26666640), (4, 19999980), (5, 15999984), (6, 13333320), (7, 11428560), (8, 9999990), (9, 8888880), (10, 7999992), (11, 7272720), (12, 6666660), (13, 6153840), (14, 5714280), (15, 5333328), (16, 4999995), (18, 4444440), (20, 3999996), (21, 3809520), (22, 3636360), (24, 3333330), (26, 3076920), (27, 2962960), (28, 2857140), (30, 2666664), (33, 2424240), (35, 2285712), (36, 2222220), (37, 2162160), (39, 2051280), (40, 1999998), (42, 1904760), (44, 1818180), (45, 1777776), (48, 1666665), (52, 1538460), (54, 1481480), (55, 1454544), (56, 1428570), (60, 1333332), (63, 1269840), (65, 1230768), (66, 1212120), (70, 1142856), (72, 1111110), (74, 1081080), (77, 1038960), (78, 1025640), (80, 999999), (84, 952380), (88, 909090), (90, 888888), (91, 879120), (99, 808080), (104, 769230), (105, 761904), (108, 740740), (110, 727272), (111, 720720), (112, 714285), (117, 683760), (120, 666666), (126, 634920), (130, 615384), (132, 606060), (135, 592592), (140, 571428), (143, 559440), (144, 555555), (148, 540540), (154, 519480), (156, 512820), (165, 484848), (168, 476190), (176, 454545), (180, 444444), (182, 439560), (185, 432432), (189, 423280), (195, 410256), (198, 404040), (208, 384615), (210, 380952), (216, 370370), (220, 363636), (222, 360360), (231, 346320), (234, 341880), (240, 333333), (252, 317460), (259, 308880), (260, 307692), (264, 303030), (270, 296296), (273, 293040), (280, 285714), (286, 279720), (296, 270270), (297, 269360), (308, 259740), (312, 256410), (315, 253968), (330, 242424), (333, 240240), (336, 238095), (351, 227920), (360, 222222), (364, 219780), (370, 216216), (378, 211640), (385, 207792), (390, 205128), (396, 202020), (407, 196560), (420, 190476), (429, 186480), (432, 185185), (440, 181818), (444, 180180), (455, 175824), (462, 173160), (468, 170940), (481, 166320), (495, 161616), (504, 158730), (518, 154440), (520, 153846), (528, 151515), (540, 148148), (546, 146520), (555, 144144), (560, 142857), (572, 139860), (585, 136752), (592, 135135), (594, 134680), (616, 129870), (624, 128205), (630, 126984), (660, 121212), (666, 120120), (693, 115440), (702, 113960), (715, 111888), (720, 111111), (728, 109890), (740, 108108), (756, 105820), (770, 103896), (777, 102960), (780, 102564), (792, 101010), (814, 98280), (819, 97680), (840, 95238), (858, 93240), (880, 90909), (888, 90090), (910, 87912), (924, 86580), (936, 85470), (945, 84656), (962, 83160), (990, 80808), (999, 80080), (1001, 79920), (1008, 79365), (1036, 77220), (1040, 76923), (1080, 74074), (1092, 73260), (1110, 72072), (1144, 69930), (1155, 69264), (1170, 68376), (1188, 67340), (1221, 65520), (1232, 64935), (1260, 63492), (1287, 62160), (1295, 61776), (1320, 60606), (1332, 60060), (1365, 58608), (1386, 57720), (1404, 56980), (1430, 55944), (1443, 55440), (1456, 54945), (1480, 54054), (1485, 53872), (1512, 52910), (1540, 51948), (1554, 51480), (1560, 51282), (1584, 50505), (1628, 49140), (1638, 48840), (1665, 48048), (1680, 47619), (1716, 46620), (1755, 45584), (1776, 45045), (1820, 43956), (1848, 43290), (1872, 42735), (1890, 42328), (1924, 41580), (1980, 40404), (1998, 40040), (2002, 39960), (2035, 39312), (2072, 38610), (2079, 38480), (2145, 37296), (2160, 37037), (2184, 36630), (2220, 36036), (2288, 34965), (2310, 34632), (2331, 34320), (2340, 34188), (2376, 33670), (2405, 33264), (2442, 32760), (2457, 32560), (2520, 31746), (2574, 31080), (2590, 30888), (2640, 30303), (2664, 30030), (2730, 29304), (2772, 28860), (2808, 28490), (2849, 28080), (2860, 27972), (2886, 27720), (2960, 27027), (2970, 26936), (3003, 26640), (3024, 26455), (3080, 25974), (3108, 25740), (3120, 25641), (3256, 24570), (3276, 24420), (3330, 24024), (3367, 23760), (3432, 23310), (3465, 23088), (3510, 22792), (3640, 21978), (3663, 21840), (3696, 21645), (3780, 21164), (3848, 20790), (3861, 20720), (3885, 20592), (3960, 20202), (3996, 20020), (4004, 19980), (4070, 19656), (4095, 19536), (4144, 19305), (4158, 19240), (4290, 18648), (4329, 18480), (4368, 18315), (4440, 18018), (4620, 17316), (4662, 17160), (4680, 17094), (4752, 16835), (4810, 16632), (4884, 16380), (4914, 16280), (4995, 16016), (5005, 15984), (5040, 15873), (5148, 15540), (5180, 15444), (5291, 15120), (5328, 15015), (5460, 14652), (5544, 14430), (5616, 14245), (5698, 14040), (5720, 13986), (5772, 13860), (5940, 13468), (6006, 13320), (6105, 13104), (6160, 12987), (6216, 12870), (6435, 12432), (6512, 12285), (6552, 12210), (6660, 12012), (6734, 11880), (6864, 11655), (6930, 11544), (6993, 11440), (7020, 11396), (7215, 11088), (7280, 10989), (7326, 10920), (7560, 10582), (7696, 10395), (7722, 10360), (7770, 10296), (7920, 10101), (7992, 10010), (8008, 9990), (8140, 9828), (8190, 9768), (8316, 9620), (8547, 9360), (8580, 9324), (8658, 9240), (8880, 9009)]