261420544

素因数分解:

$2^9\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:404

約数の個数: 160

約数和(自身を含む): 687456000

約数和(自身を除く): 426035456

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 28, 32, 38, 44, 56, 64, 76, 77, 88, 112, 128, 133, 152, 154, 176, 209, 224, 256, 266, 304, 308, 349, 352, 418, 448, 512, 532, 608, 616, 698, 704, 836, 896, 1064, 1216, 1232, 1396, 1408, 1463, 1672, 1792, 2128, 2432, 2443, 2464, 2792, 2816, 2926, 3344, 3584, 3839, 4256, 4864, 4886, 4928, 5584, 5632, 5852, 6631, 6688, 7678, 8512, 9728, 9772, 9856, 11168, 11704, 13262, 13376, 15356, 17024, 19544, 19712, 22336, 23408, 26524, 26752, 26873, 30712, 34048, 39088, 39424, 44672, 46417, 46816, 53048, 53504, 53746, 61424, 68096, 72941, 78176, 89344, 92834, 93632, 106096, 107008, 107492, 122848, 145882, 156352, 178688, 185668, 187264, 212192, 214984, 245696, 291764, 312704, 371336, 374528, 424384, 429968, 491392, 510587, 583528, 625408, 742672, 749056, 848768, 859936, 982784, 1021174, 1167056, 1250816, 1485344, 1697536, 1719872, 1965568, 2042348, 2334112, 2970688, 3395072, 3439744, 4084696, 4668224, 5941376, 6879488, 8169392, 9336448, 11882752, 13758976, 16338784, 18672896, 23765504, 32677568, 37345792, 65355136, 130710272, 261420544]

約数ペア:

[(1, 261420544), (2, 130710272), (4, 65355136), (7, 37345792), (8, 32677568), (11, 23765504), (14, 18672896), (16, 16338784), (19, 13758976), (22, 11882752), (28, 9336448), (32, 8169392), (38, 6879488), (44, 5941376), (56, 4668224), (64, 4084696), (76, 3439744), (77, 3395072), (88, 2970688), (112, 2334112), (128, 2042348), (133, 1965568), (152, 1719872), (154, 1697536), (176, 1485344), (209, 1250816), (224, 1167056), (256, 1021174), (266, 982784), (304, 859936), (308, 848768), (349, 749056), (352, 742672), (418, 625408), (448, 583528), (512, 510587), (532, 491392), (608, 429968), (616, 424384), (698, 374528), (704, 371336), (836, 312704), (896, 291764), (1064, 245696), (1216, 214984), (1232, 212192), (1396, 187264), (1408, 185668), (1463, 178688), (1672, 156352), (1792, 145882), (2128, 122848), (2432, 107492), (2443, 107008), (2464, 106096), (2792, 93632), (2816, 92834), (2926, 89344), (3344, 78176), (3584, 72941), (3839, 68096), (4256, 61424), (4864, 53746), (4886, 53504), (4928, 53048), (5584, 46816), (5632, 46417), (5852, 44672), (6631, 39424), (6688, 39088), (7678, 34048), (8512, 30712), (9728, 26873), (9772, 26752), (9856, 26524), (11168, 23408), (11704, 22336), (13262, 19712), (13376, 19544), (15356, 17024)]