256720384

素因数分解:

$2^9\times {\mathrm{257}}^1\times {\mathrm{1951}}^1$

素因数の和:2226

約数の個数: 40

約数和(自身を含む): 515199168

約数和(自身を除く): 258478784

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 257, 512, 514, 1028, 1951, 2056, 3902, 4112, 7804, 8224, 15608, 16448, 31216, 32896, 62432, 65792, 124864, 131584, 249728, 499456, 501407, 998912, 1002814, 2005628, 4011256, 8022512, 16045024, 32090048, 64180096, 128360192, 256720384]

約数ペア:

[(1, 256720384), (2, 128360192), (4, 64180096), (8, 32090048), (16, 16045024), (32, 8022512), (64, 4011256), (128, 2005628), (256, 1002814), (257, 998912), (512, 501407), (514, 499456), (1028, 249728), (1951, 131584), (2056, 124864), (3902, 65792), (4112, 62432), (7804, 32896), (8224, 31216), (15608, 16448)]