255813376

素因数分解:

$2^8\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:254

約数の個数: 144

約数和(自身を含む): 640998400

約数和(自身を除く): 385185024

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 79, 91, 104, 112, 128, 139, 158, 182, 208, 224, 256, 278, 316, 364, 416, 448, 553, 556, 632, 728, 832, 896, 973, 1027, 1106, 1112, 1264, 1456, 1664, 1792, 1807, 1946, 2054, 2212, 2224, 2528, 2912, 3328, 3614, 3892, 4108, 4424, 4448, 5056, 5824, 7189, 7228, 7784, 8216, 8848, 8896, 10112, 10981, 11648, 12649, 14378, 14456, 15568, 16432, 17696, 17792, 20224, 21962, 23296, 25298, 28756, 28912, 31136, 32864, 35392, 35584, 43924, 50596, 57512, 57824, 62272, 65728, 70784, 76867, 87848, 101192, 115024, 115648, 124544, 131456, 141568, 142753, 153734, 175696, 202384, 230048, 231296, 249088, 262912, 285506, 307468, 351392, 404768, 460096, 462592, 571012, 614936, 702784, 809536, 920192, 999271, 1142024, 1229872, 1405568, 1619072, 1840384, 1998542, 2284048, 2459744, 2811136, 3238144, 3997084, 4568096, 4919488, 7994168, 9136192, 9838976, 15988336, 18272384, 19677952, 31976672, 36544768, 63953344, 127906688, 255813376]

約数ペア:

[(1, 255813376), (2, 127906688), (4, 63953344), (7, 36544768), (8, 31976672), (13, 19677952), (14, 18272384), (16, 15988336), (26, 9838976), (28, 9136192), (32, 7994168), (52, 4919488), (56, 4568096), (64, 3997084), (79, 3238144), (91, 2811136), (104, 2459744), (112, 2284048), (128, 1998542), (139, 1840384), (158, 1619072), (182, 1405568), (208, 1229872), (224, 1142024), (256, 999271), (278, 920192), (316, 809536), (364, 702784), (416, 614936), (448, 571012), (553, 462592), (556, 460096), (632, 404768), (728, 351392), (832, 307468), (896, 285506), (973, 262912), (1027, 249088), (1106, 231296), (1112, 230048), (1264, 202384), (1456, 175696), (1664, 153734), (1792, 142753), (1807, 141568), (1946, 131456), (2054, 124544), (2212, 115648), (2224, 115024), (2528, 101192), (2912, 87848), (3328, 76867), (3614, 70784), (3892, 65728), (4108, 62272), (4424, 57824), (4448, 57512), (5056, 50596), (5824, 43924), (7189, 35584), (7228, 35392), (7784, 32864), (8216, 31136), (8848, 28912), (8896, 28756), (10112, 25298), (10981, 23296), (11648, 21962), (12649, 20224), (14378, 17792), (14456, 17696), (15568, 16432)]