261568512

素因数分解:

$2^{11}\times 3^2\times {\mathrm{23}}^1\times {\mathrm{617}}^1$

素因数の和:668

約数の個数: 144

約数和(自身を含む): 789581520

約数和(自身を除く): 528013008

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 32, 36, 46, 48, 64, 69, 72, 92, 96, 128, 138, 144, 184, 192, 207, 256, 276, 288, 368, 384, 414, 512, 552, 576, 617, 736, 768, 828, 1024, 1104, 1152, 1234, 1472, 1536, 1656, 1851, 2048, 2208, 2304, 2468, 2944, 3072, 3312, 3702, 4416, 4608, 4936, 5553, 5888, 6144, 6624, 7404, 8832, 9216, 9872, 11106, 11776, 13248, 14191, 14808, 17664, 18432, 19744, 22212, 23552, 26496, 28382, 29616, 35328, 39488, 42573, 44424, 47104, 52992, 56764, 59232, 70656, 78976, 85146, 88848, 105984, 113528, 118464, 127719, 141312, 157952, 170292, 177696, 211968, 227056, 236928, 255438, 315904, 340584, 355392, 423936, 454112, 473856, 510876, 631808, 681168, 710784, 908224, 947712, 1021752, 1263616, 1362336, 1421568, 1816448, 1895424, 2043504, 2724672, 2843136, 3632896, 3790848, 4087008, 5449344, 5686272, 7265792, 8174016, 10898688, 11372544, 14531584, 16348032, 21797376, 29063168, 32696064, 43594752, 65392128, 87189504, 130784256, 261568512]

約数ペア:

[(1, 261568512), (2, 130784256), (3, 87189504), (4, 65392128), (6, 43594752), (8, 32696064), (9, 29063168), (12, 21797376), (16, 16348032), (18, 14531584), (23, 11372544), (24, 10898688), (32, 8174016), (36, 7265792), (46, 5686272), (48, 5449344), (64, 4087008), (69, 3790848), (72, 3632896), (92, 2843136), (96, 2724672), (128, 2043504), (138, 1895424), (144, 1816448), (184, 1421568), (192, 1362336), (207, 1263616), (256, 1021752), (276, 947712), (288, 908224), (368, 710784), (384, 681168), (414, 631808), (512, 510876), (552, 473856), (576, 454112), (617, 423936), (736, 355392), (768, 340584), (828, 315904), (1024, 255438), (1104, 236928), (1152, 227056), (1234, 211968), (1472, 177696), (1536, 170292), (1656, 157952), (1851, 141312), (2048, 127719), (2208, 118464), (2304, 113528), (2468, 105984), (2944, 88848), (3072, 85146), (3312, 78976), (3702, 70656), (4416, 59232), (4608, 56764), (4936, 52992), (5553, 47104), (5888, 44424), (6144, 42573), (6624, 39488), (7404, 35328), (8832, 29616), (9216, 28382), (9872, 26496), (11106, 23552), (11776, 22212), (13248, 19744), (14191, 18432), (14808, 17664)]