856234240

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{109}}^1$

素因数の和:185

約数の個数: 216

約数和(自身を含む): 2312929080

約数和(自身を除く): 1456694840

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 64, 68, 76, 80, 85, 95, 109, 128, 136, 152, 160, 170, 190, 218, 256, 272, 304, 320, 323, 340, 361, 380, 436, 544, 545, 608, 640, 646, 680, 722, 760, 872, 1088, 1090, 1216, 1280, 1292, 1360, 1444, 1520, 1615, 1744, 1805, 1853, 2071, 2176, 2180, 2432, 2584, 2720, 2888, 3040, 3230, 3488, 3610, 3706, 4142, 4352, 4360, 4864, 5168, 5440, 5776, 6080, 6137, 6460, 6976, 7220, 7412, 8284, 8720, 9265, 10336, 10355, 10880, 11552, 12160, 12274, 12920, 13952, 14440, 14824, 16568, 17440, 18530, 20672, 20710, 21760, 23104, 24320, 24548, 25840, 27904, 28880, 29648, 30685, 33136, 34880, 35207, 37060, 39349, 41344, 41420, 46208, 49096, 51680, 57760, 59296, 61370, 66272, 69760, 70414, 74120, 78698, 82688, 82840, 92416, 98192, 103360, 115520, 118592, 122740, 132544, 139520, 140828, 148240, 157396, 165680, 176035, 196384, 196745, 206720, 231040, 237184, 245480, 265088, 281656, 296480, 314792, 331360, 352070, 392768, 393490, 413440, 462080, 474368, 490960, 530176, 563312, 592960, 629584, 662720, 668933, 704140, 785536, 786980, 981920, 1126624, 1185920, 1259168, 1325440, 1337866, 1408280, 1571072, 1573960, 1963840, 2253248, 2371840, 2518336, 2650880, 2675732, 2816560, 3147920, 3344665, 3927680, 4506496, 5036672, 5351464, 5633120, 6295840, 6689330, 7855360, 9012992, 10073344, 10702928, 11266240, 12591680, 13378660, 21405856, 22532480, 25183360, 26757320, 42811712, 45064960, 50366720, 53514640, 85623424, 107029280, 171246848, 214058560, 428117120, 856234240]

約数ペア:

[(1, 856234240), (2, 428117120), (4, 214058560), (5, 171246848), (8, 107029280), (10, 85623424), (16, 53514640), (17, 50366720), (19, 45064960), (20, 42811712), (32, 26757320), (34, 25183360), (38, 22532480), (40, 21405856), (64, 13378660), (68, 12591680), (76, 11266240), (80, 10702928), (85, 10073344), (95, 9012992), (109, 7855360), (128, 6689330), (136, 6295840), (152, 5633120), (160, 5351464), (170, 5036672), (190, 4506496), (218, 3927680), (256, 3344665), (272, 3147920), (304, 2816560), (320, 2675732), (323, 2650880), (340, 2518336), (361, 2371840), (380, 2253248), (436, 1963840), (544, 1573960), (545, 1571072), (608, 1408280), (640, 1337866), (646, 1325440), (680, 1259168), (722, 1185920), (760, 1126624), (872, 981920), (1088, 786980), (1090, 785536), (1216, 704140), (1280, 668933), (1292, 662720), (1360, 629584), (1444, 592960), (1520, 563312), (1615, 530176), (1744, 490960), (1805, 474368), (1853, 462080), (2071, 413440), (2176, 393490), (2180, 392768), (2432, 352070), (2584, 331360), (2720, 314792), (2888, 296480), (3040, 281656), (3230, 265088), (3488, 245480), (3610, 237184), (3706, 231040), (4142, 206720), (4352, 196745), (4360, 196384), (4864, 176035), (5168, 165680), (5440, 157396), (5776, 148240), (6080, 140828), (6137, 139520), (6460, 132544), (6976, 122740), (7220, 118592), (7412, 115520), (8284, 103360), (8720, 98192), (9265, 92416), (10336, 82840), (10355, 82688), (10880, 78698), (11552, 74120), (12160, 70414), (12274, 69760), (12920, 66272), (13952, 61370), (14440, 59296), (14824, 57760), (16568, 51680), (17440, 49096), (18530, 46208), (20672, 41420), (20710, 41344), (21760, 39349), (23104, 37060), (24320, 35207), (24548, 34880), (25840, 33136), (27904, 30685), (28880, 29648)]