287291305

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2\times {\mathrm{257}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 426752640

約数和(自身を除く): 139461335

約数列:

[1, 5, 7, 19, 35, 41, 95, 133, 205, 257, 287, 665, 779, 1285, 1435, 1681, 1799, 3895, 4883, 5453, 8405, 8995, 10537, 11767, 24415, 27265, 31939, 34181, 52685, 58835, 73759, 159695, 170905, 200203, 223573, 368795, 432017, 1001015, 1117865, 1401421, 2160085, 3024119, 7007105, 8208323, 15120595, 41041615, 57458261, 287291305]

約数ペア:

[(1, 287291305), (5, 57458261), (7, 41041615), (19, 15120595), (35, 8208323), (41, 7007105), (95, 3024119), (133, 2160085), (205, 1401421), (257, 1117865), (287, 1001015), (665, 432017), (779, 368795), (1285, 223573), (1435, 200203), (1681, 170905), (1799, 159695), (3895, 73759), (4883, 58835), (5453, 52685), (8405, 34181), (8995, 31939), (10537, 27265), (11767, 24415)]