256354872

素因数分解:

$2^3\times 3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:345

約数の個数: 128

約数和(自身を含む): 703365120

約数和(自身を除く): 447010248

約数列:

[1, 2, 3, 4, 6, 8, 12, 23, 24, 31, 46, 62, 69, 71, 92, 93, 124, 138, 142, 184, 186, 211, 213, 248, 276, 284, 372, 422, 426, 552, 568, 633, 713, 744, 844, 852, 1266, 1426, 1633, 1688, 1704, 2139, 2201, 2532, 2852, 3266, 4278, 4402, 4853, 4899, 5064, 5704, 6532, 6541, 6603, 8556, 8804, 9706, 9798, 13064, 13082, 13206, 14559, 14981, 17112, 17608, 19412, 19596, 19623, 26164, 26412, 29118, 29962, 38824, 39192, 39246, 44943, 50623, 52328, 52824, 58236, 59924, 78492, 89886, 101246, 116472, 119848, 150443, 151869, 156984, 179772, 202492, 300886, 303738, 344563, 359544, 404984, 451329, 464411, 601772, 607476, 689126, 902658, 928822, 1033689, 1203544, 1214952, 1378252, 1393233, 1805316, 1857644, 2067378, 2756504, 2786466, 3610632, 3715288, 4134756, 5572932, 8269512, 10681453, 11145864, 21362906, 32044359, 42725812, 64088718, 85451624, 128177436, 256354872]

約数ペア:

[(1, 256354872), (2, 128177436), (3, 85451624), (4, 64088718), (6, 42725812), (8, 32044359), (12, 21362906), (23, 11145864), (24, 10681453), (31, 8269512), (46, 5572932), (62, 4134756), (69, 3715288), (71, 3610632), (92, 2786466), (93, 2756504), (124, 2067378), (138, 1857644), (142, 1805316), (184, 1393233), (186, 1378252), (211, 1214952), (213, 1203544), (248, 1033689), (276, 928822), (284, 902658), (372, 689126), (422, 607476), (426, 601772), (552, 464411), (568, 451329), (633, 404984), (713, 359544), (744, 344563), (844, 303738), (852, 300886), (1266, 202492), (1426, 179772), (1633, 156984), (1688, 151869), (1704, 150443), (2139, 119848), (2201, 116472), (2532, 101246), (2852, 89886), (3266, 78492), (4278, 59924), (4402, 58236), (4853, 52824), (4899, 52328), (5064, 50623), (5704, 44943), (6532, 39246), (6541, 39192), (6603, 38824), (8556, 29962), (8804, 29118), (9706, 26412), (9798, 26164), (13064, 19623), (13082, 19596), (13206, 19412), (14559, 17608), (14981, 17112)]