257822976

素因数分解:

$2^8\times 3^1\times {\mathrm{389}}^1\times {\mathrm{863}}^1$

素因数の和:1271

約数の個数: 72

約数和(自身を含む): 688746240

約数和(自身を除く): 430923264

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 389, 768, 778, 863, 1167, 1556, 1726, 2334, 2589, 3112, 3452, 4668, 5178, 6224, 6904, 9336, 10356, 12448, 13808, 18672, 20712, 24896, 27616, 37344, 41424, 49792, 55232, 74688, 82848, 99584, 110464, 149376, 165696, 220928, 298752, 331392, 335707, 662784, 671414, 1007121, 1342828, 2014242, 2685656, 4028484, 5371312, 8056968, 10742624, 16113936, 21485248, 32227872, 42970496, 64455744, 85940992, 128911488, 257822976]

約数ペア:

[(1, 257822976), (2, 128911488), (3, 85940992), (4, 64455744), (6, 42970496), (8, 32227872), (12, 21485248), (16, 16113936), (24, 10742624), (32, 8056968), (48, 5371312), (64, 4028484), (96, 2685656), (128, 2014242), (192, 1342828), (256, 1007121), (384, 671414), (389, 662784), (768, 335707), (778, 331392), (863, 298752), (1167, 220928), (1556, 165696), (1726, 149376), (2334, 110464), (2589, 99584), (3112, 82848), (3452, 74688), (4668, 55232), (5178, 49792), (6224, 41424), (6904, 37344), (9336, 27616), (10356, 24896), (12448, 20712), (13808, 18672)]