256289328

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{283}}^1\times {\mathrm{331}}^1$

素因数の和:647

約数の個数: 120

約数和(自身を含む): 759961280

約数和(自身を除く): 503671952

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 72, 76, 114, 144, 152, 171, 228, 283, 304, 331, 342, 456, 566, 662, 684, 849, 912, 993, 1132, 1324, 1368, 1698, 1986, 2264, 2547, 2648, 2736, 2979, 3396, 3972, 4528, 5094, 5296, 5377, 5958, 6289, 6792, 7944, 10188, 10754, 11916, 12578, 13584, 15888, 16131, 18867, 20376, 21508, 23832, 25156, 32262, 37734, 40752, 43016, 47664, 48393, 50312, 56601, 64524, 75468, 86032, 93673, 96786, 100624, 113202, 129048, 150936, 187346, 193572, 226404, 258096, 281019, 301872, 374692, 387144, 452808, 562038, 749384, 774288, 843057, 905616, 1124076, 1498768, 1686114, 1779787, 2248152, 3372228, 3559574, 4496304, 5339361, 6744456, 7119148, 10678722, 13488912, 14238296, 16018083, 21357444, 28476592, 32036166, 42714888, 64072332, 85429776, 128144664, 256289328]

約数ペア:

[(1, 256289328), (2, 128144664), (3, 85429776), (4, 64072332), (6, 42714888), (8, 32036166), (9, 28476592), (12, 21357444), (16, 16018083), (18, 14238296), (19, 13488912), (24, 10678722), (36, 7119148), (38, 6744456), (48, 5339361), (57, 4496304), (72, 3559574), (76, 3372228), (114, 2248152), (144, 1779787), (152, 1686114), (171, 1498768), (228, 1124076), (283, 905616), (304, 843057), (331, 774288), (342, 749384), (456, 562038), (566, 452808), (662, 387144), (684, 374692), (849, 301872), (912, 281019), (993, 258096), (1132, 226404), (1324, 193572), (1368, 187346), (1698, 150936), (1986, 129048), (2264, 113202), (2547, 100624), (2648, 96786), (2736, 93673), (2979, 86032), (3396, 75468), (3972, 64524), (4528, 56601), (5094, 50312), (5296, 48393), (5377, 47664), (5958, 43016), (6289, 40752), (6792, 37734), (7944, 32262), (10188, 25156), (10754, 23832), (11916, 21508), (12578, 20376), (13584, 18867), (15888, 16131)]