80459725

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{197}}^1$

素因数の和:286

約数の個数: 36

約数和(自身を含む): 109710612

約数和(自身を除く): 29250887

約数列:

[1, 5, 17, 25, 31, 85, 155, 197, 425, 527, 775, 961, 985, 2635, 3349, 4805, 4925, 6107, 13175, 16337, 16745, 24025, 30535, 81685, 83725, 103819, 152675, 189317, 408425, 519095, 946585, 2595475, 3218389, 4732925, 16091945, 80459725]

約数ペア:

[(1, 80459725), (5, 16091945), (17, 4732925), (25, 3218389), (31, 2595475), (85, 946585), (155, 519095), (197, 408425), (425, 189317), (527, 152675), (775, 103819), (961, 83725), (985, 81685), (2635, 30535), (3349, 24025), (4805, 16745), (4925, 16337), (6107, 13175)]