812045

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^2$

素因数の和:93

約数の個数: 18

約数和(自身を含む): 1090314

約数和(自身を除く): 278269

約数列:

[1, 5, 13, 31, 65, 155, 169, 403, 845, 961, 2015, 4805, 5239, 12493, 26195, 62465, 162409, 812045]

約数ペア:

[(1, 812045), (5, 162409), (13, 62465), (31, 26195), (65, 12493), (155, 5239), (169, 4805), (403, 2015), (845, 961)]