278634496

素因数分解:

$2^{13}\times 7^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:189

約数の個数: 112

約数和(自身を含む): 657417024

約数和(自身を除く): 378782528

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 64, 86, 112, 113, 128, 172, 224, 226, 256, 301, 344, 448, 452, 512, 602, 688, 791, 896, 904, 1024, 1204, 1376, 1582, 1792, 1808, 2048, 2408, 2752, 3164, 3584, 3616, 4096, 4816, 4859, 5504, 6328, 7168, 7232, 8192, 9632, 9718, 11008, 12656, 14336, 14464, 19264, 19436, 22016, 25312, 28672, 28928, 34013, 38528, 38872, 44032, 50624, 57344, 57856, 68026, 77056, 77744, 88064, 101248, 115712, 136052, 154112, 155488, 176128, 202496, 231424, 272104, 308224, 310976, 352256, 404992, 462848, 544208, 616448, 621952, 809984, 925696, 1088416, 1232896, 1243904, 1619968, 2176832, 2465792, 2487808, 3239936, 4353664, 4975616, 6479872, 8707328, 9951232, 17414656, 19902464, 34829312, 39804928, 69658624, 139317248, 278634496]

約数ペア:

[(1, 278634496), (2, 139317248), (4, 69658624), (7, 39804928), (8, 34829312), (14, 19902464), (16, 17414656), (28, 9951232), (32, 8707328), (43, 6479872), (56, 4975616), (64, 4353664), (86, 3239936), (112, 2487808), (113, 2465792), (128, 2176832), (172, 1619968), (224, 1243904), (226, 1232896), (256, 1088416), (301, 925696), (344, 809984), (448, 621952), (452, 616448), (512, 544208), (602, 462848), (688, 404992), (791, 352256), (896, 310976), (904, 308224), (1024, 272104), (1204, 231424), (1376, 202496), (1582, 176128), (1792, 155488), (1808, 154112), (2048, 136052), (2408, 115712), (2752, 101248), (3164, 88064), (3584, 77744), (3616, 77056), (4096, 68026), (4816, 57856), (4859, 57344), (5504, 50624), (6328, 44032), (7168, 38872), (7232, 38528), (8192, 34013), (9632, 28928), (9718, 28672), (11008, 25312), (12656, 22016), (14336, 19436), (14464, 19264)]