257328768

素因数分解:

$2^7\times 3^1\times {\mathrm{31}}^1\times {\mathrm{21617}}^1$

素因数の和:21665

約数の個数: 64

約数和(自身を含む): 705611520

約数和(自身を除く): 448282752

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, 21617, 43234, 64851, 86468, 129702, 172936, 259404, 345872, 518808, 670127, 691744, 1037616, 1340254, 1383488, 2010381, 2075232, 2680508, 2766976, 4020762, 4150464, 5361016, 8041524, 8300928, 10722032, 16083048, 21444064, 32166096, 42888128, 64332192, 85776256, 128664384, 257328768]

約数ペア:

[(1, 257328768), (2, 128664384), (3, 85776256), (4, 64332192), (6, 42888128), (8, 32166096), (12, 21444064), (16, 16083048), (24, 10722032), (31, 8300928), (32, 8041524), (48, 5361016), (62, 4150464), (64, 4020762), (93, 2766976), (96, 2680508), (124, 2075232), (128, 2010381), (186, 1383488), (192, 1340254), (248, 1037616), (372, 691744), (384, 670127), (496, 518808), (744, 345872), (992, 259404), (1488, 172936), (1984, 129702), (2976, 86468), (3968, 64851), (5952, 43234), (11904, 21617)]