81285840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1$

素因数の和:294

約数の個数: 240

約数和(自身を含む): 300315600

約数和(自身を除く): 219029760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 29, 30, 34, 36, 40, 45, 48, 51, 58, 60, 68, 72, 80, 85, 87, 90, 102, 116, 120, 136, 144, 145, 153, 170, 174, 180, 204, 229, 232, 240, 255, 261, 272, 290, 306, 340, 348, 360, 408, 435, 458, 464, 493, 510, 522, 580, 612, 680, 687, 696, 720, 765, 816, 870, 916, 986, 1020, 1044, 1145, 1160, 1224, 1305, 1360, 1374, 1392, 1479, 1530, 1740, 1832, 1972, 2040, 2061, 2088, 2290, 2320, 2448, 2465, 2610, 2748, 2958, 3060, 3435, 3480, 3664, 3893, 3944, 4080, 4122, 4176, 4437, 4580, 4930, 5220, 5496, 5916, 6120, 6641, 6870, 6960, 7395, 7786, 7888, 8244, 8874, 9160, 9860, 10305, 10440, 10992, 11679, 11832, 12240, 13282, 13740, 14790, 15572, 16488, 17748, 18320, 19465, 19720, 19923, 20610, 20880, 22185, 23358, 23664, 26564, 27480, 29580, 31144, 32976, 33205, 35037, 35496, 38930, 39440, 39846, 41220, 44370, 46716, 53128, 54960, 58395, 59160, 59769, 62288, 66410, 70074, 70992, 77860, 79692, 82440, 88740, 93432, 99615, 106256, 112897, 116790, 118320, 119538, 132820, 140148, 155720, 159384, 164880, 175185, 177480, 186864, 199230, 225794, 233580, 239076, 265640, 280296, 298845, 311440, 318768, 338691, 350370, 354960, 398460, 451588, 467160, 478152, 531280, 560592, 564485, 597690, 677382, 700740, 796920, 903176, 934320, 956304, 1016073, 1128970, 1195380, 1354764, 1401480, 1593840, 1693455, 1806352, 2032146, 2257940, 2390760, 2709528, 2802960, 3386910, 4064292, 4515880, 4781520, 5080365, 5419056, 6773820, 8128584, 9031760, 10160730, 13547640, 16257168, 20321460, 27095280, 40642920, 81285840]

約数ペア:

[(1, 81285840), (2, 40642920), (3, 27095280), (4, 20321460), (5, 16257168), (6, 13547640), (8, 10160730), (9, 9031760), (10, 8128584), (12, 6773820), (15, 5419056), (16, 5080365), (17, 4781520), (18, 4515880), (20, 4064292), (24, 3386910), (29, 2802960), (30, 2709528), (34, 2390760), (36, 2257940), (40, 2032146), (45, 1806352), (48, 1693455), (51, 1593840), (58, 1401480), (60, 1354764), (68, 1195380), (72, 1128970), (80, 1016073), (85, 956304), (87, 934320), (90, 903176), (102, 796920), (116, 700740), (120, 677382), (136, 597690), (144, 564485), (145, 560592), (153, 531280), (170, 478152), (174, 467160), (180, 451588), (204, 398460), (229, 354960), (232, 350370), (240, 338691), (255, 318768), (261, 311440), (272, 298845), (290, 280296), (306, 265640), (340, 239076), (348, 233580), (360, 225794), (408, 199230), (435, 186864), (458, 177480), (464, 175185), (493, 164880), (510, 159384), (522, 155720), (580, 140148), (612, 132820), (680, 119538), (687, 118320), (696, 116790), (720, 112897), (765, 106256), (816, 99615), (870, 93432), (916, 88740), (986, 82440), (1020, 79692), (1044, 77860), (1145, 70992), (1160, 70074), (1224, 66410), (1305, 62288), (1360, 59769), (1374, 59160), (1392, 58395), (1479, 54960), (1530, 53128), (1740, 46716), (1832, 44370), (1972, 41220), (2040, 39846), (2061, 39440), (2088, 38930), (2290, 35496), (2320, 35037), (2448, 33205), (2465, 32976), (2610, 31144), (2748, 29580), (2958, 27480), (3060, 26564), (3435, 23664), (3480, 23358), (3664, 22185), (3893, 20880), (3944, 20610), (4080, 19923), (4122, 19720), (4176, 19465), (4437, 18320), (4580, 17748), (4930, 16488), (5220, 15572), (5496, 14790), (5916, 13740), (6120, 13282), (6641, 12240), (6870, 11832), (6960, 11679), (7395, 10992), (7786, 10440), (7888, 10305), (8244, 9860), (8874, 9160)]