257918208

素因数分解:

$2^8\times 3^1\times {\mathrm{41}}^1\times {\mathrm{8191}}^1$

素因数の和:8251

約数の個数: 72

約数和(自身を含む): 703266816

約数和(自身を除く): 445348608

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 41, 48, 64, 82, 96, 123, 128, 164, 192, 246, 256, 328, 384, 492, 656, 768, 984, 1312, 1968, 2624, 3936, 5248, 7872, 8191, 10496, 15744, 16382, 24573, 31488, 32764, 49146, 65528, 98292, 131056, 196584, 262112, 335831, 393168, 524224, 671662, 786336, 1007493, 1048448, 1343324, 1572672, 2014986, 2096896, 2686648, 3145344, 4029972, 5373296, 6290688, 8059944, 10746592, 16119888, 21493184, 32239776, 42986368, 64479552, 85972736, 128959104, 257918208]

約数ペア:

[(1, 257918208), (2, 128959104), (3, 85972736), (4, 64479552), (6, 42986368), (8, 32239776), (12, 21493184), (16, 16119888), (24, 10746592), (32, 8059944), (41, 6290688), (48, 5373296), (64, 4029972), (82, 3145344), (96, 2686648), (123, 2096896), (128, 2014986), (164, 1572672), (192, 1343324), (246, 1048448), (256, 1007493), (328, 786336), (384, 671662), (492, 524224), (656, 393168), (768, 335831), (984, 262112), (1312, 196584), (1968, 131056), (2624, 98292), (3936, 65528), (5248, 49146), (7872, 32764), (8191, 31488), (10496, 24573), (15744, 16382)]