256995456

素因数分解:

$2^7\times 3^1\times {\mathrm{31}}^1\times {\mathrm{21589}}^1$

素因数の和:21637

約数の個数: 64

約数和(自身を含む): 704697600

約数和(自身を除く): 447702144

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 32, 48, 62, 64, 93, 96, 124, 128, 186, 192, 248, 372, 384, 496, 744, 992, 1488, 1984, 2976, 3968, 5952, 11904, 21589, 43178, 64767, 86356, 129534, 172712, 259068, 345424, 518136, 669259, 690848, 1036272, 1338518, 1381696, 2007777, 2072544, 2677036, 2763392, 4015554, 4145088, 5354072, 8031108, 8290176, 10708144, 16062216, 21416288, 32124432, 42832576, 64248864, 85665152, 128497728, 256995456]

約数ペア:

[(1, 256995456), (2, 128497728), (3, 85665152), (4, 64248864), (6, 42832576), (8, 32124432), (12, 21416288), (16, 16062216), (24, 10708144), (31, 8290176), (32, 8031108), (48, 5354072), (62, 4145088), (64, 4015554), (93, 2763392), (96, 2677036), (124, 2072544), (128, 2007777), (186, 1381696), (192, 1338518), (248, 1036272), (372, 690848), (384, 669259), (496, 518136), (744, 345424), (992, 259068), (1488, 172712), (1984, 129534), (2976, 86356), (3968, 64767), (5952, 43178), (11904, 21589)]