647831248

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{353}}^1\times {\mathrm{4987}}^1$

素因数の和:5371

約数の個数: 40

約数和(自身を含む): 1313719488

約数和(自身を除く): 665888240

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 353, 368, 706, 1412, 2824, 4987, 5648, 8119, 9974, 16238, 19948, 32476, 39896, 64952, 79792, 114701, 129904, 229402, 458804, 917608, 1760411, 1835216, 3520822, 7041644, 14083288, 28166576, 40489453, 80978906, 161957812, 323915624, 647831248]

約数ペア:

[(1, 647831248), (2, 323915624), (4, 161957812), (8, 80978906), (16, 40489453), (23, 28166576), (46, 14083288), (92, 7041644), (184, 3520822), (353, 1835216), (368, 1760411), (706, 917608), (1412, 458804), (2824, 229402), (4987, 129904), (5648, 114701), (8119, 79792), (9974, 64952), (16238, 39896), (19948, 32476)]