128851215

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{2657}}^1$

素因数の和:2779

約数の個数: 32

約数和(自身を含む): 213575616

約数和(自身を除く): 84724401

約数列:

[1, 3, 5, 15, 53, 61, 159, 183, 265, 305, 795, 915, 2657, 3233, 7971, 9699, 13285, 16165, 39855, 48495, 140821, 162077, 422463, 486231, 704105, 810385, 2112315, 2431155, 8590081, 25770243, 42950405, 128851215]

約数ペア:

[(1, 128851215), (3, 42950405), (5, 25770243), (15, 8590081), (53, 2431155), (61, 2112315), (159, 810385), (183, 704105), (265, 486231), (305, 422463), (795, 162077), (915, 140821), (2657, 48495), (3233, 39855), (7971, 16165), (9699, 13285)]