257054392

素因数分解:

$2^3\times 7^2\times {\mathrm{37}}^2\times {\mathrm{479}}^1$

素因数の和:573

約数の個数: 72

約数和(自身を含む): 577432800

約数和(自身を除く): 320378408

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 49, 56, 74, 98, 148, 196, 259, 296, 392, 479, 518, 958, 1036, 1369, 1813, 1916, 2072, 2738, 3353, 3626, 3832, 5476, 6706, 7252, 9583, 10952, 13412, 14504, 17723, 19166, 23471, 26824, 35446, 38332, 46942, 67081, 70892, 76664, 93884, 124061, 134162, 141784, 187768, 248122, 268324, 496244, 536648, 655751, 868427, 992488, 1311502, 1736854, 2623004, 3473708, 4590257, 5246008, 6947416, 9180514, 18361028, 32131799, 36722056, 64263598, 128527196, 257054392]

約数ペア:

[(1, 257054392), (2, 128527196), (4, 64263598), (7, 36722056), (8, 32131799), (14, 18361028), (28, 9180514), (37, 6947416), (49, 5246008), (56, 4590257), (74, 3473708), (98, 2623004), (148, 1736854), (196, 1311502), (259, 992488), (296, 868427), (392, 655751), (479, 536648), (518, 496244), (958, 268324), (1036, 248122), (1369, 187768), (1813, 141784), (1916, 134162), (2072, 124061), (2738, 93884), (3353, 76664), (3626, 70892), (3832, 67081), (5476, 46942), (6706, 38332), (7252, 35446), (9583, 26824), (10952, 23471), (13412, 19166), (14504, 17723)]