420173845

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{29789}}^1$

素因数の和:29845

約数の個数: 32

約数和(自身を含む): 640604160

約数和(自身を除く): 220430315

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 155, 217, 403, 455, 1085, 2015, 2821, 14105, 29789, 148945, 208523, 387257, 923459, 1042615, 1936285, 2710799, 4617295, 6464213, 12004967, 13553995, 32321065, 60024835, 84034769, 420173845]

約数ペア:

[(1, 420173845), (5, 84034769), (7, 60024835), (13, 32321065), (31, 13553995), (35, 12004967), (65, 6464213), (91, 4617295), (155, 2710799), (217, 1936285), (403, 1042615), (455, 923459), (1085, 387257), (2015, 208523), (2821, 148945), (14105, 29789)]