261417984

素因数分解:

$2^{10}\times 3^1\times {\mathrm{43}}^1\times {\mathrm{1979}}^1$

素因数の和:2045

約数の個数: 88

約数和(自身を含む): 713338560

約数和(自身を除く): 451920576

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 43, 48, 64, 86, 96, 128, 129, 172, 192, 256, 258, 344, 384, 512, 516, 688, 768, 1024, 1032, 1376, 1536, 1979, 2064, 2752, 3072, 3958, 4128, 5504, 5937, 7916, 8256, 11008, 11874, 15832, 16512, 22016, 23748, 31664, 33024, 44032, 47496, 63328, 66048, 85097, 94992, 126656, 132096, 170194, 189984, 253312, 255291, 340388, 379968, 506624, 510582, 680776, 759936, 1013248, 1021164, 1361552, 1519872, 2026496, 2042328, 2723104, 3039744, 4084656, 5446208, 6079488, 8169312, 10892416, 16338624, 21784832, 32677248, 43569664, 65354496, 87139328, 130708992, 261417984]

約数ペア:

[(1, 261417984), (2, 130708992), (3, 87139328), (4, 65354496), (6, 43569664), (8, 32677248), (12, 21784832), (16, 16338624), (24, 10892416), (32, 8169312), (43, 6079488), (48, 5446208), (64, 4084656), (86, 3039744), (96, 2723104), (128, 2042328), (129, 2026496), (172, 1519872), (192, 1361552), (256, 1021164), (258, 1013248), (344, 759936), (384, 680776), (512, 510582), (516, 506624), (688, 379968), (768, 340388), (1024, 255291), (1032, 253312), (1376, 189984), (1536, 170194), (1979, 132096), (2064, 126656), (2752, 94992), (3072, 85097), (3958, 66048), (4128, 63328), (5504, 47496), (5937, 44032), (7916, 33024), (8256, 31664), (11008, 23748), (11874, 22016), (15832, 16512)]