81016475

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 114278400

約数和(自身を除く): 33261925

約数列:

[1, 5, 17, 19, 25, 79, 85, 95, 127, 323, 395, 425, 475, 635, 1343, 1501, 1615, 1975, 2159, 2413, 3175, 6715, 7505, 8075, 10033, 10795, 12065, 25517, 33575, 37525, 41021, 50165, 53975, 60325, 127585, 170561, 190627, 205105, 250825, 637925, 852805, 953135, 1025525, 3240659, 4264025, 4765675, 16203295, 81016475]

約数ペア:

[(1, 81016475), (5, 16203295), (17, 4765675), (19, 4264025), (25, 3240659), (79, 1025525), (85, 953135), (95, 852805), (127, 637925), (323, 250825), (395, 205105), (425, 190627), (475, 170561), (635, 127585), (1343, 60325), (1501, 53975), (1615, 50165), (1975, 41021), (2159, 37525), (2413, 33575), (3175, 25517), (6715, 12065), (7505, 10795), (8075, 10033)]