256003456

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{433}}^1$

素因数の和:627

約数の個数: 64

約数和(自身を含む): 531216000

約数和(自身を除く): 275212544

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 149, 248, 298, 433, 496, 596, 866, 992, 1192, 1732, 1984, 2384, 3464, 3968, 4619, 4768, 6928, 9238, 9536, 13423, 13856, 18476, 19072, 26846, 27712, 36952, 53692, 55424, 64517, 73904, 107384, 129034, 147808, 214768, 258068, 295616, 429536, 516136, 591232, 859072, 1032272, 1718144, 2000027, 2064544, 4000054, 4129088, 8000108, 8258176, 16000216, 32000432, 64000864, 128001728, 256003456]

約数ペア:

[(1, 256003456), (2, 128001728), (4, 64000864), (8, 32000432), (16, 16000216), (31, 8258176), (32, 8000108), (62, 4129088), (64, 4000054), (124, 2064544), (128, 2000027), (149, 1718144), (248, 1032272), (298, 859072), (433, 591232), (496, 516136), (596, 429536), (866, 295616), (992, 258068), (1192, 214768), (1732, 147808), (1984, 129034), (2384, 107384), (3464, 73904), (3968, 64517), (4619, 55424), (4768, 53692), (6928, 36952), (9238, 27712), (9536, 26846), (13423, 19072), (13856, 18476)]