257357408

素因数分解:

$2^5\times 7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{347}}^1$

素因数の和:425

約数の個数: 144

約数和(自身を含む): 659824704

約数和(自身を除く): 402467296

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 43, 44, 49, 56, 77, 86, 88, 98, 112, 154, 172, 176, 196, 224, 301, 308, 344, 347, 352, 392, 473, 539, 602, 616, 688, 694, 784, 946, 1078, 1204, 1232, 1376, 1388, 1568, 1892, 2107, 2156, 2408, 2429, 2464, 2776, 3311, 3784, 3817, 4214, 4312, 4816, 4858, 5552, 6622, 7568, 7634, 8428, 8624, 9632, 9716, 11104, 13244, 14921, 15136, 15268, 16856, 17003, 17248, 19432, 23177, 26488, 26719, 29842, 30536, 33712, 34006, 38864, 46354, 52976, 53438, 59684, 61072, 67424, 68012, 77728, 92708, 104447, 105952, 106876, 119368, 122144, 136024, 164131, 185416, 187033, 208894, 213752, 238736, 272048, 328262, 370832, 374066, 417788, 427504, 477472, 544096, 656524, 731129, 741664, 748132, 835576, 855008, 1148917, 1313048, 1462258, 1496264, 1671152, 2297834, 2626096, 2924516, 2992528, 3342304, 4595668, 5252192, 5849032, 5985056, 8042419, 9191336, 11698064, 16084838, 18382672, 23396128, 32169676, 36765344, 64339352, 128678704, 257357408]

約数ペア:

[(1, 257357408), (2, 128678704), (4, 64339352), (7, 36765344), (8, 32169676), (11, 23396128), (14, 18382672), (16, 16084838), (22, 11698064), (28, 9191336), (32, 8042419), (43, 5985056), (44, 5849032), (49, 5252192), (56, 4595668), (77, 3342304), (86, 2992528), (88, 2924516), (98, 2626096), (112, 2297834), (154, 1671152), (172, 1496264), (176, 1462258), (196, 1313048), (224, 1148917), (301, 855008), (308, 835576), (344, 748132), (347, 741664), (352, 731129), (392, 656524), (473, 544096), (539, 477472), (602, 427504), (616, 417788), (688, 374066), (694, 370832), (784, 328262), (946, 272048), (1078, 238736), (1204, 213752), (1232, 208894), (1376, 187033), (1388, 185416), (1568, 164131), (1892, 136024), (2107, 122144), (2156, 119368), (2408, 106876), (2429, 105952), (2464, 104447), (2776, 92708), (3311, 77728), (3784, 68012), (3817, 67424), (4214, 61072), (4312, 59684), (4816, 53438), (4858, 52976), (5552, 46354), (6622, 38864), (7568, 34006), (7634, 33712), (8428, 30536), (8624, 29842), (9632, 26719), (9716, 26488), (11104, 23177), (13244, 19432), (14921, 17248), (15136, 17003), (15268, 16856)]