257361408

素因数分解:

$2^9\times 3^3\times {\mathrm{18617}}^1$

素因数の和:18644

約数の個数: 80

約数和(自身を含む): 761848560

約数和(自身を除く): 504487152

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 96, 108, 128, 144, 192, 216, 256, 288, 384, 432, 512, 576, 768, 864, 1152, 1536, 1728, 2304, 3456, 4608, 6912, 13824, 18617, 37234, 55851, 74468, 111702, 148936, 167553, 223404, 297872, 335106, 446808, 502659, 595744, 670212, 893616, 1005318, 1191488, 1340424, 1787232, 2010636, 2382976, 2680848, 3574464, 4021272, 4765952, 5361696, 7148928, 8042544, 9531904, 10723392, 14297856, 16085088, 21446784, 28595712, 32170176, 42893568, 64340352, 85787136, 128680704, 257361408]

約数ペア:

[(1, 257361408), (2, 128680704), (3, 85787136), (4, 64340352), (6, 42893568), (8, 32170176), (9, 28595712), (12, 21446784), (16, 16085088), (18, 14297856), (24, 10723392), (27, 9531904), (32, 8042544), (36, 7148928), (48, 5361696), (54, 4765952), (64, 4021272), (72, 3574464), (96, 2680848), (108, 2382976), (128, 2010636), (144, 1787232), (192, 1340424), (216, 1191488), (256, 1005318), (288, 893616), (384, 670212), (432, 595744), (512, 502659), (576, 446808), (768, 335106), (864, 297872), (1152, 223404), (1536, 167553), (1728, 148936), (2304, 111702), (3456, 74468), (4608, 55851), (6912, 37234), (13824, 18617)]