208097425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{193}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 285785280

約数和(自身を除く): 77687855

約数列:

[1, 5, 17, 25, 43, 59, 85, 193, 215, 295, 425, 731, 965, 1003, 1075, 1475, 2537, 3281, 3655, 4825, 5015, 8299, 11387, 12685, 16405, 18275, 25075, 41495, 43129, 56935, 63425, 82025, 141083, 193579, 207475, 215645, 284675, 489641, 705415, 967895, 1078225, 2448205, 3527075, 4839475, 8323897, 12241025, 41619485, 208097425]

約数ペア:

[(1, 208097425), (5, 41619485), (17, 12241025), (25, 8323897), (43, 4839475), (59, 3527075), (85, 2448205), (193, 1078225), (215, 967895), (295, 705415), (425, 489641), (731, 284675), (965, 215645), (1003, 207475), (1075, 193579), (1475, 141083), (2537, 82025), (3281, 63425), (3655, 56935), (4825, 43129), (5015, 41495), (8299, 25075), (11387, 18275), (12685, 16405)]