71818320

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:258

約数の個数: 240

約数和(自身を含む): 268697088

約数和(自身を除く): 196878768

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 35, 40, 42, 48, 49, 56, 60, 62, 70, 80, 84, 93, 98, 105, 112, 120, 124, 140, 147, 155, 168, 186, 196, 197, 210, 217, 240, 245, 248, 280, 294, 310, 336, 372, 392, 394, 420, 434, 465, 490, 496, 560, 588, 591, 620, 651, 735, 744, 784, 788, 840, 868, 930, 980, 985, 1085, 1176, 1182, 1240, 1302, 1379, 1470, 1488, 1519, 1576, 1680, 1736, 1860, 1960, 1970, 2170, 2352, 2364, 2480, 2604, 2758, 2940, 2955, 3038, 3152, 3255, 3472, 3720, 3920, 3940, 4137, 4340, 4557, 4728, 5208, 5516, 5880, 5910, 6076, 6107, 6510, 6895, 7440, 7595, 7880, 8274, 8680, 9114, 9456, 9653, 10416, 11032, 11760, 11820, 12152, 12214, 13020, 13790, 15190, 15760, 16548, 17360, 18228, 18321, 19306, 20685, 22064, 22785, 23640, 24304, 24428, 26040, 27580, 28959, 30380, 30535, 33096, 36456, 36642, 38612, 41370, 42749, 45570, 47280, 48265, 48856, 52080, 55160, 57918, 60760, 61070, 66192, 72912, 73284, 77224, 82740, 85498, 91140, 91605, 96530, 97712, 110320, 115836, 121520, 122140, 128247, 144795, 146568, 154448, 165480, 170996, 182280, 183210, 193060, 213745, 231672, 244280, 256494, 289590, 293136, 299243, 330960, 341992, 364560, 366420, 386120, 427490, 463344, 488560, 512988, 579180, 598486, 641235, 683984, 732840, 772240, 854980, 897729, 1025976, 1158360, 1196972, 1282470, 1465680, 1496215, 1709960, 1795458, 2051952, 2316720, 2393944, 2564940, 2992430, 3419920, 3590916, 4488645, 4787888, 5129880, 5984860, 7181832, 8977290, 10259760, 11969720, 14363664, 17954580, 23939440, 35909160, 71818320]

約数ペア:

[(1, 71818320), (2, 35909160), (3, 23939440), (4, 17954580), (5, 14363664), (6, 11969720), (7, 10259760), (8, 8977290), (10, 7181832), (12, 5984860), (14, 5129880), (15, 4787888), (16, 4488645), (20, 3590916), (21, 3419920), (24, 2992430), (28, 2564940), (30, 2393944), (31, 2316720), (35, 2051952), (40, 1795458), (42, 1709960), (48, 1496215), (49, 1465680), (56, 1282470), (60, 1196972), (62, 1158360), (70, 1025976), (80, 897729), (84, 854980), (93, 772240), (98, 732840), (105, 683984), (112, 641235), (120, 598486), (124, 579180), (140, 512988), (147, 488560), (155, 463344), (168, 427490), (186, 386120), (196, 366420), (197, 364560), (210, 341992), (217, 330960), (240, 299243), (245, 293136), (248, 289590), (280, 256494), (294, 244280), (310, 231672), (336, 213745), (372, 193060), (392, 183210), (394, 182280), (420, 170996), (434, 165480), (465, 154448), (490, 146568), (496, 144795), (560, 128247), (588, 122140), (591, 121520), (620, 115836), (651, 110320), (735, 97712), (744, 96530), (784, 91605), (788, 91140), (840, 85498), (868, 82740), (930, 77224), (980, 73284), (985, 72912), (1085, 66192), (1176, 61070), (1182, 60760), (1240, 57918), (1302, 55160), (1379, 52080), (1470, 48856), (1488, 48265), (1519, 47280), (1576, 45570), (1680, 42749), (1736, 41370), (1860, 38612), (1960, 36642), (1970, 36456), (2170, 33096), (2352, 30535), (2364, 30380), (2480, 28959), (2604, 27580), (2758, 26040), (2940, 24428), (2955, 24304), (3038, 23640), (3152, 22785), (3255, 22064), (3472, 20685), (3720, 19306), (3920, 18321), (3940, 18228), (4137, 17360), (4340, 16548), (4557, 15760), (4728, 15190), (5208, 13790), (5516, 13020), (5880, 12214), (5910, 12152), (6076, 11820), (6107, 11760), (6510, 11032), (6895, 10416), (7440, 9653), (7595, 9456), (7880, 9114), (8274, 8680)]