81408635

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{359}}^1$

素因数の和:432

約数の個数: 64

約数和(自身を含む): 132710400

約数和(自身を除く): 51301765

約数列:

[1, 5, 7, 11, 19, 31, 35, 55, 77, 95, 133, 155, 209, 217, 341, 359, 385, 589, 665, 1045, 1085, 1463, 1705, 1795, 2387, 2513, 2945, 3949, 4123, 6479, 6821, 7315, 11129, 11935, 12565, 19745, 20615, 27643, 32395, 34105, 45353, 47747, 55645, 75031, 77903, 122419, 138215, 211451, 226765, 238735, 375155, 389515, 525217, 612095, 856933, 1057255, 1480157, 2325961, 2626085, 4284665, 7400785, 11629805, 16281727, 81408635]

約数ペア:

[(1, 81408635), (5, 16281727), (7, 11629805), (11, 7400785), (19, 4284665), (31, 2626085), (35, 2325961), (55, 1480157), (77, 1057255), (95, 856933), (133, 612095), (155, 525217), (209, 389515), (217, 375155), (341, 238735), (359, 226765), (385, 211451), (589, 138215), (665, 122419), (1045, 77903), (1085, 75031), (1463, 55645), (1705, 47747), (1795, 45353), (2387, 34105), (2513, 32395), (2945, 27643), (3949, 20615), (4123, 19745), (6479, 12565), (6821, 11935), (7315, 11129)]