205319504

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{13903}}^1$

素因数の和:13995

約数の個数: 40

約数和(自身を含む): 434472192

約数和(自身を除く): 229152688

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 71, 104, 142, 208, 284, 568, 923, 1136, 1846, 3692, 7384, 13903, 14768, 27806, 55612, 111224, 180739, 222448, 361478, 722956, 987113, 1445912, 1974226, 2891824, 3948452, 7896904, 12832469, 15793808, 25664938, 51329876, 102659752, 205319504]

約数ペア:

[(1, 205319504), (2, 102659752), (4, 51329876), (8, 25664938), (13, 15793808), (16, 12832469), (26, 7896904), (52, 3948452), (71, 2891824), (104, 1974226), (142, 1445912), (208, 987113), (284, 722956), (568, 361478), (923, 222448), (1136, 180739), (1846, 111224), (3692, 55612), (7384, 27806), (13903, 14768)]