257466112

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1231}}^1$

素因数の和:1309

約数の個数: 72

約数和(自身を含む): 554005760

約数和(自身を除く): 296539648

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 43, 64, 76, 86, 128, 152, 172, 256, 304, 344, 608, 688, 817, 1216, 1231, 1376, 1634, 2432, 2462, 2752, 3268, 4864, 4924, 5504, 6536, 9848, 11008, 13072, 19696, 23389, 26144, 39392, 46778, 52288, 52933, 78784, 93556, 104576, 105866, 157568, 187112, 209152, 211732, 315136, 374224, 423464, 748448, 846928, 1005727, 1496896, 1693856, 2011454, 2993792, 3387712, 4022908, 5987584, 6775424, 8045816, 13550848, 16091632, 32183264, 64366528, 128733056, 257466112]

約数ペア:

[(1, 257466112), (2, 128733056), (4, 64366528), (8, 32183264), (16, 16091632), (19, 13550848), (32, 8045816), (38, 6775424), (43, 5987584), (64, 4022908), (76, 3387712), (86, 2993792), (128, 2011454), (152, 1693856), (172, 1496896), (256, 1005727), (304, 846928), (344, 748448), (608, 423464), (688, 374224), (817, 315136), (1216, 211732), (1231, 209152), (1376, 187112), (1634, 157568), (2432, 105866), (2462, 104576), (2752, 93556), (3268, 78784), (4864, 52933), (4924, 52288), (5504, 46778), (6536, 39392), (9848, 26144), (11008, 23389), (13072, 19696)]