261947504

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{179909}}^1$

素因数の和:179937

約数の個数: 40

約数和(自身を含む): 624647520

約数和(自身を除く): 362700016

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 179909, 359818, 719636, 1259363, 1439272, 2338817, 2518726, 2878544, 4677634, 5037452, 9355268, 10074904, 16371719, 18710536, 20149808, 32743438, 37421072, 65486876, 130973752, 261947504]

約数ペア:

[(1, 261947504), (2, 130973752), (4, 65486876), (7, 37421072), (8, 32743438), (13, 20149808), (14, 18710536), (16, 16371719), (26, 10074904), (28, 9355268), (52, 5037452), (56, 4677634), (91, 2878544), (104, 2518726), (112, 2338817), (182, 1439272), (208, 1259363), (364, 719636), (728, 359818), (1456, 179909)]