208049525

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 285696000

約数和(自身を除く): 77646475

約数列:

[1, 5, 19, 25, 31, 71, 95, 155, 199, 355, 475, 589, 775, 995, 1349, 1775, 2201, 2945, 3781, 4975, 6169, 6745, 11005, 14129, 14725, 18905, 30845, 33725, 41819, 55025, 70645, 94525, 117211, 154225, 209095, 268451, 353225, 437999, 586055, 1045475, 1342255, 2189995, 2930275, 6711275, 8321981, 10949975, 41609905, 208049525]

約数ペア:

[(1, 208049525), (5, 41609905), (19, 10949975), (25, 8321981), (31, 6711275), (71, 2930275), (95, 2189995), (155, 1342255), (199, 1045475), (355, 586055), (475, 437999), (589, 353225), (775, 268451), (995, 209095), (1349, 154225), (1775, 117211), (2201, 94525), (2945, 70645), (3781, 55025), (4975, 41819), (6169, 33725), (6745, 30845), (11005, 18905), (14129, 14725)]