28365155

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2011}}^1$

素因数の和:2067

約数の個数: 32

約数和(自身を含む): 43266048

約数和(自身を除く): 14900893

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 155, 217, 403, 455, 1085, 2011, 2015, 2821, 10055, 14077, 14105, 26143, 62341, 70385, 130715, 183001, 311705, 436387, 810433, 915005, 2181935, 4052165, 5673031, 28365155]

約数ペア:

[(1, 28365155), (5, 5673031), (7, 4052165), (13, 2181935), (31, 915005), (35, 810433), (65, 436387), (91, 311705), (155, 183001), (217, 130715), (403, 70385), (455, 62341), (1085, 26143), (2011, 14105), (2015, 14077), (2821, 10055)]