256505964

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:276

約数の個数: 144

約数和(自身を含む): 720728064

約数和(自身を除く): 464222100

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 78, 107, 121, 127, 132, 143, 156, 214, 242, 254, 286, 321, 363, 381, 428, 429, 484, 508, 572, 642, 726, 762, 858, 1177, 1284, 1391, 1397, 1452, 1524, 1573, 1651, 1716, 2354, 2782, 2794, 3146, 3302, 3531, 4173, 4191, 4708, 4719, 4953, 5564, 5588, 6292, 6604, 7062, 8346, 8382, 9438, 9906, 12947, 13589, 14124, 15301, 15367, 16692, 16764, 18161, 18876, 19812, 25894, 27178, 30602, 30734, 36322, 38841, 40767, 45903, 46101, 51788, 54356, 54483, 61204, 61468, 72644, 77682, 81534, 91806, 92202, 108966, 149479, 155364, 163068, 168311, 176657, 183612, 184404, 199771, 217932, 298958, 336622, 353314, 399542, 448437, 504933, 529971, 597916, 599313, 673244, 706628, 799084, 896874, 1009866, 1059942, 1198626, 1644269, 1793748, 1943227, 2019732, 2119884, 2397252, 3288538, 3886454, 4932807, 5829681, 6577076, 7772908, 9865614, 11659362, 19731228, 21375497, 23318724, 42750994, 64126491, 85501988, 128252982, 256505964]

約数ペア:

[(1, 256505964), (2, 128252982), (3, 85501988), (4, 64126491), (6, 42750994), (11, 23318724), (12, 21375497), (13, 19731228), (22, 11659362), (26, 9865614), (33, 7772908), (39, 6577076), (44, 5829681), (52, 4932807), (66, 3886454), (78, 3288538), (107, 2397252), (121, 2119884), (127, 2019732), (132, 1943227), (143, 1793748), (156, 1644269), (214, 1198626), (242, 1059942), (254, 1009866), (286, 896874), (321, 799084), (363, 706628), (381, 673244), (428, 599313), (429, 597916), (484, 529971), (508, 504933), (572, 448437), (642, 399542), (726, 353314), (762, 336622), (858, 298958), (1177, 217932), (1284, 199771), (1391, 184404), (1397, 183612), (1452, 176657), (1524, 168311), (1573, 163068), (1651, 155364), (1716, 149479), (2354, 108966), (2782, 92202), (2794, 91806), (3146, 81534), (3302, 77682), (3531, 72644), (4173, 61468), (4191, 61204), (4708, 54483), (4719, 54356), (4953, 51788), (5564, 46101), (5588, 45903), (6292, 40767), (6604, 38841), (7062, 36322), (8346, 30734), (8382, 30602), (9438, 27178), (9906, 25894), (12947, 19812), (13589, 18876), (14124, 18161), (15301, 16764), (15367, 16692)]