81261785

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{7901}}^1$

素因数の和:7945

約数の個数: 24

約数和(自身を含む): 113504328

約数和(自身を除く): 32242543

約数列:

[1, 5, 11, 17, 55, 85, 121, 187, 605, 935, 2057, 7901, 10285, 39505, 86911, 134317, 434555, 671585, 956021, 1477487, 4780105, 7387435, 16252357, 81261785]

約数ペア:

[(1, 81261785), (5, 16252357), (11, 7387435), (17, 4780105), (55, 1477487), (85, 956021), (121, 671585), (187, 434555), (605, 134317), (935, 86911), (2057, 39505), (7901, 10285)]