257401088

素因数分解:

$2^8\times 7^1\times {\mathrm{239}}^1\times {\mathrm{601}}^1$

素因数の和:863

約数の個数: 72

約数和(自身を含む): 590634240

約数和(自身を除く): 333233152

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 239, 256, 448, 478, 601, 896, 956, 1202, 1673, 1792, 1912, 2404, 3346, 3824, 4207, 4808, 6692, 7648, 8414, 9616, 13384, 15296, 16828, 19232, 26768, 30592, 33656, 38464, 53536, 61184, 67312, 76928, 107072, 134624, 143639, 153856, 214144, 269248, 287278, 428288, 538496, 574556, 1005473, 1076992, 1149112, 2010946, 2298224, 4021892, 4596448, 8043784, 9192896, 16087568, 18385792, 32175136, 36771584, 64350272, 128700544, 257401088]

約数ペア:

[(1, 257401088), (2, 128700544), (4, 64350272), (7, 36771584), (8, 32175136), (14, 18385792), (16, 16087568), (28, 9192896), (32, 8043784), (56, 4596448), (64, 4021892), (112, 2298224), (128, 2010946), (224, 1149112), (239, 1076992), (256, 1005473), (448, 574556), (478, 538496), (601, 428288), (896, 287278), (956, 269248), (1202, 214144), (1673, 153856), (1792, 143639), (1912, 134624), (2404, 107072), (3346, 76928), (3824, 67312), (4207, 61184), (4808, 53536), (6692, 38464), (7648, 33656), (8414, 30592), (9616, 26768), (13384, 19232), (15296, 16828)]