81610165

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{2161}}^1$

素因数の和:2269

約数の個数: 32

約数和(自身を含む): 122040576

約数和(自身を除く): 40430411

約数列:

[1, 5, 7, 13, 35, 65, 83, 91, 415, 455, 581, 1079, 2161, 2905, 5395, 7553, 10805, 15127, 28093, 37765, 75635, 140465, 179363, 196651, 896815, 983255, 1255541, 2331719, 6277705, 11658595, 16322033, 81610165]

約数ペア:

[(1, 81610165), (5, 16322033), (7, 11658595), (13, 6277705), (35, 2331719), (65, 1255541), (83, 983255), (91, 896815), (415, 196651), (455, 179363), (581, 140465), (1079, 75635), (2161, 37765), (2905, 28093), (5395, 15127), (7553, 10805)]