256223744

素因数分解:

$2^9\times 7^3\times {\mathrm{1459}}^1$

素因数の和:1498

約数の個数: 80

約数和(自身を含む): 597432000

約数和(自身を除く): 341208256

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 343, 392, 448, 512, 686, 784, 896, 1372, 1459, 1568, 1792, 2744, 2918, 3136, 3584, 5488, 5836, 6272, 10213, 10976, 11672, 12544, 20426, 21952, 23344, 25088, 40852, 43904, 46688, 71491, 81704, 87808, 93376, 142982, 163408, 175616, 186752, 285964, 326816, 373504, 500437, 571928, 653632, 747008, 1000874, 1143856, 1307264, 2001748, 2287712, 2614528, 4003496, 4575424, 5229056, 8006992, 9150848, 16013984, 18301696, 32027968, 36603392, 64055936, 128111872, 256223744]

約数ペア:

[(1, 256223744), (2, 128111872), (4, 64055936), (7, 36603392), (8, 32027968), (14, 18301696), (16, 16013984), (28, 9150848), (32, 8006992), (49, 5229056), (56, 4575424), (64, 4003496), (98, 2614528), (112, 2287712), (128, 2001748), (196, 1307264), (224, 1143856), (256, 1000874), (343, 747008), (392, 653632), (448, 571928), (512, 500437), (686, 373504), (784, 326816), (896, 285964), (1372, 186752), (1459, 175616), (1568, 163408), (1792, 142982), (2744, 93376), (2918, 87808), (3136, 81704), (3584, 71491), (5488, 46688), (5836, 43904), (6272, 40852), (10213, 25088), (10976, 23344), (11672, 21952), (12544, 20426)]