256460288

素因数分解:

$2^9\times 7^1\times {\mathrm{163}}^1\times {\mathrm{439}}^1$

素因数の和:627

約数の個数: 80

約数和(自身を含む): 590557440

約数和(自身を除く): 334097152

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 163, 224, 256, 326, 439, 448, 512, 652, 878, 896, 1141, 1304, 1756, 1792, 2282, 2608, 3073, 3512, 3584, 4564, 5216, 6146, 7024, 9128, 10432, 12292, 14048, 18256, 20864, 24584, 28096, 36512, 41728, 49168, 56192, 71557, 73024, 83456, 98336, 112384, 143114, 146048, 196672, 224768, 286228, 292096, 393344, 500899, 572456, 584192, 786688, 1001798, 1144912, 1573376, 2003596, 2289824, 4007192, 4579648, 8014384, 9159296, 16028768, 18318592, 32057536, 36637184, 64115072, 128230144, 256460288]

約数ペア:

[(1, 256460288), (2, 128230144), (4, 64115072), (7, 36637184), (8, 32057536), (14, 18318592), (16, 16028768), (28, 9159296), (32, 8014384), (56, 4579648), (64, 4007192), (112, 2289824), (128, 2003596), (163, 1573376), (224, 1144912), (256, 1001798), (326, 786688), (439, 584192), (448, 572456), (512, 500899), (652, 393344), (878, 292096), (896, 286228), (1141, 224768), (1304, 196672), (1756, 146048), (1792, 143114), (2282, 112384), (2608, 98336), (3073, 83456), (3512, 73024), (3584, 71557), (4564, 56192), (5216, 49168), (6146, 41728), (7024, 36512), (9128, 28096), (10432, 24584), (12292, 20864), (14048, 18256)]