208020075

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{277}}^1$

素因数の和:357

約数の個数: 96

約数和(自身を含む): 397117440

約数和(自身を除く): 189097365

約数列:

[1, 3, 5, 15, 17, 19, 25, 31, 51, 57, 75, 85, 93, 95, 155, 255, 277, 285, 323, 425, 465, 475, 527, 589, 775, 831, 969, 1275, 1385, 1425, 1581, 1615, 1767, 2325, 2635, 2945, 4155, 4709, 4845, 5263, 6925, 7905, 8075, 8587, 8835, 10013, 13175, 14127, 14725, 15789, 20775, 23545, 24225, 25761, 26315, 30039, 39525, 42935, 44175, 50065, 70635, 78945, 89471, 117725, 128805, 131575, 145979, 150195, 163153, 214675, 250325, 268413, 353175, 394725, 437937, 447355, 489459, 644025, 729895, 750975, 815765, 1342065, 2189685, 2236775, 2447295, 2773601, 3649475, 4078825, 6710325, 8320803, 10948425, 12236475, 13868005, 41604015, 69340025, 208020075]

約数ペア:

[(1, 208020075), (3, 69340025), (5, 41604015), (15, 13868005), (17, 12236475), (19, 10948425), (25, 8320803), (31, 6710325), (51, 4078825), (57, 3649475), (75, 2773601), (85, 2447295), (93, 2236775), (95, 2189685), (155, 1342065), (255, 815765), (277, 750975), (285, 729895), (323, 644025), (425, 489459), (465, 447355), (475, 437937), (527, 394725), (589, 353175), (775, 268413), (831, 250325), (969, 214675), (1275, 163153), (1385, 150195), (1425, 145979), (1581, 131575), (1615, 128805), (1767, 117725), (2325, 89471), (2635, 78945), (2945, 70635), (4155, 50065), (4709, 44175), (4845, 42935), (5263, 39525), (6925, 30039), (7905, 26315), (8075, 25761), (8587, 24225), (8835, 23545), (10013, 20775), (13175, 15789), (14127, 14725)]