18785205

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 34744320

約数和(自身を除く): 15959115

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 127, 171, 173, 285, 381, 519, 635, 855, 865, 1143, 1557, 1905, 2413, 2595, 3287, 5715, 7239, 7785, 9861, 12065, 16435, 21717, 21971, 29583, 36195, 49305, 65913, 108585, 109855, 147915, 197739, 329565, 417449, 988695, 1252347, 2087245, 3757041, 6261735, 18785205]

約数ペア:

[(1, 18785205), (3, 6261735), (5, 3757041), (9, 2087245), (15, 1252347), (19, 988695), (45, 417449), (57, 329565), (95, 197739), (127, 147915), (171, 109855), (173, 108585), (285, 65913), (381, 49305), (519, 36195), (635, 29583), (855, 21971), (865, 21717), (1143, 16435), (1557, 12065), (1905, 9861), (2413, 7785), (2595, 7239), (3287, 5715)]