256952080

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:198

約数の個数: 240

約数和(自身を含む): 778610880

約数和(自身を除く): 521658800

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 49, 55, 56, 59, 70, 77, 80, 88, 98, 101, 110, 112, 118, 140, 154, 176, 196, 202, 220, 236, 245, 280, 295, 308, 385, 392, 404, 413, 440, 472, 490, 505, 539, 560, 590, 616, 649, 707, 770, 784, 808, 826, 880, 944, 980, 1010, 1078, 1111, 1180, 1232, 1298, 1414, 1540, 1616, 1652, 1960, 2020, 2065, 2156, 2222, 2360, 2596, 2695, 2828, 2891, 3080, 3245, 3304, 3535, 3920, 4040, 4130, 4312, 4444, 4543, 4720, 4949, 5192, 5390, 5555, 5656, 5782, 5959, 6160, 6490, 6608, 7070, 7777, 8080, 8260, 8624, 8888, 9086, 9898, 10384, 10780, 11110, 11312, 11564, 11918, 12980, 14140, 14455, 15554, 16520, 17776, 18172, 19796, 21560, 22220, 22715, 23128, 23836, 24745, 25960, 28280, 28910, 29795, 31108, 31801, 33040, 36344, 38885, 39592, 41713, 43120, 44440, 45430, 46256, 47672, 49490, 51920, 54439, 56560, 57820, 59590, 62216, 63602, 65549, 72688, 77770, 79184, 83426, 88880, 90860, 95344, 98980, 108878, 115640, 119180, 124432, 127204, 131098, 155540, 159005, 166852, 181720, 197960, 208565, 217756, 231280, 238360, 254408, 262196, 272195, 291991, 311080, 318010, 327745, 333704, 363440, 395920, 417130, 435512, 458843, 476720, 508816, 524392, 544390, 583982, 622160, 636020, 655490, 667408, 834260, 871024, 917686, 1048784, 1088780, 1167964, 1272040, 1310980, 1459955, 1668520, 1835372, 2177560, 2294215, 2335928, 2544080, 2621960, 2919910, 3211901, 3337040, 3670744, 4355120, 4588430, 4671856, 5243920, 5839820, 6423802, 7341488, 9176860, 11679640, 12847604, 16059505, 18353720, 23359280, 25695208, 32119010, 36707440, 51390416, 64238020, 128476040, 256952080]

約数ペア:

[(1, 256952080), (2, 128476040), (4, 64238020), (5, 51390416), (7, 36707440), (8, 32119010), (10, 25695208), (11, 23359280), (14, 18353720), (16, 16059505), (20, 12847604), (22, 11679640), (28, 9176860), (35, 7341488), (40, 6423802), (44, 5839820), (49, 5243920), (55, 4671856), (56, 4588430), (59, 4355120), (70, 3670744), (77, 3337040), (80, 3211901), (88, 2919910), (98, 2621960), (101, 2544080), (110, 2335928), (112, 2294215), (118, 2177560), (140, 1835372), (154, 1668520), (176, 1459955), (196, 1310980), (202, 1272040), (220, 1167964), (236, 1088780), (245, 1048784), (280, 917686), (295, 871024), (308, 834260), (385, 667408), (392, 655490), (404, 636020), (413, 622160), (440, 583982), (472, 544390), (490, 524392), (505, 508816), (539, 476720), (560, 458843), (590, 435512), (616, 417130), (649, 395920), (707, 363440), (770, 333704), (784, 327745), (808, 318010), (826, 311080), (880, 291991), (944, 272195), (980, 262196), (1010, 254408), (1078, 238360), (1111, 231280), (1180, 217756), (1232, 208565), (1298, 197960), (1414, 181720), (1540, 166852), (1616, 159005), (1652, 155540), (1960, 131098), (2020, 127204), (2065, 124432), (2156, 119180), (2222, 115640), (2360, 108878), (2596, 98980), (2695, 95344), (2828, 90860), (2891, 88880), (3080, 83426), (3245, 79184), (3304, 77770), (3535, 72688), (3920, 65549), (4040, 63602), (4130, 62216), (4312, 59590), (4444, 57820), (4543, 56560), (4720, 54439), (4949, 51920), (5192, 49490), (5390, 47672), (5555, 46256), (5656, 45430), (5782, 44440), (5959, 43120), (6160, 41713), (6490, 39592), (6608, 38885), (7070, 36344), (7777, 33040), (8080, 31801), (8260, 31108), (8624, 29795), (8888, 28910), (9086, 28280), (9898, 25960), (10384, 24745), (10780, 23836), (11110, 23128), (11312, 22715), (11564, 22220), (11918, 21560), (12980, 19796), (14140, 18172), (14455, 17776), (15554, 16520)]