81831765

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{9901}}^1$

素因数の和:9957

約数の個数: 32

約数和(自身を含む): 142588800

約数和(自身を除く): 60757035

約数列:

[1, 3, 5, 15, 19, 29, 57, 87, 95, 145, 285, 435, 551, 1653, 2755, 8265, 9901, 29703, 49505, 148515, 188119, 287129, 564357, 861387, 940595, 1435645, 2821785, 4306935, 5455451, 16366353, 27277255, 81831765]

約数ペア:

[(1, 81831765), (3, 27277255), (5, 16366353), (15, 5455451), (19, 4306935), (29, 2821785), (57, 1435645), (87, 940595), (95, 861387), (145, 564357), (285, 287129), (435, 188119), (551, 148515), (1653, 49505), (2755, 29703), (8265, 9901)]