287279856

素因数分解:

$2^4\times 3^2\times {\mathrm{97}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:399

約数の個数: 120

約数和(自身を含む): 823686864

約数和(自身を除く): 536407008

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 97, 131, 144, 157, 194, 262, 291, 314, 388, 393, 471, 524, 582, 628, 776, 786, 873, 942, 1048, 1164, 1179, 1256, 1413, 1552, 1572, 1746, 1884, 2096, 2328, 2358, 2512, 2826, 3144, 3492, 3768, 4656, 4716, 5652, 6288, 6984, 7536, 9432, 11304, 12707, 13968, 15229, 18864, 20567, 22608, 25414, 30458, 38121, 41134, 45687, 50828, 60916, 61701, 76242, 82268, 91374, 101656, 114363, 121832, 123402, 137061, 152484, 164536, 182748, 185103, 203312, 228726, 243664, 246804, 274122, 304968, 329072, 365496, 370206, 457452, 493608, 548244, 609936, 730992, 740412, 914904, 987216, 1096488, 1480824, 1829808, 1994999, 2192976, 2961648, 3989998, 5984997, 7979996, 11969994, 15959992, 17954991, 23939988, 31919984, 35909982, 47879976, 71819964, 95759952, 143639928, 287279856]

約数ペア:

[(1, 287279856), (2, 143639928), (3, 95759952), (4, 71819964), (6, 47879976), (8, 35909982), (9, 31919984), (12, 23939988), (16, 17954991), (18, 15959992), (24, 11969994), (36, 7979996), (48, 5984997), (72, 3989998), (97, 2961648), (131, 2192976), (144, 1994999), (157, 1829808), (194, 1480824), (262, 1096488), (291, 987216), (314, 914904), (388, 740412), (393, 730992), (471, 609936), (524, 548244), (582, 493608), (628, 457452), (776, 370206), (786, 365496), (873, 329072), (942, 304968), (1048, 274122), (1164, 246804), (1179, 243664), (1256, 228726), (1413, 203312), (1552, 185103), (1572, 182748), (1746, 164536), (1884, 152484), (2096, 137061), (2328, 123402), (2358, 121832), (2512, 114363), (2826, 101656), (3144, 91374), (3492, 82268), (3768, 76242), (4656, 61701), (4716, 60916), (5652, 50828), (6288, 45687), (6984, 41134), (7536, 38121), (9432, 30458), (11304, 25414), (12707, 22608), (13968, 20567), (15229, 18864)]