290566199

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{859}}^1$

素因数の和:1091

約数の個数: 32

約数和(自身を含む): 380436480

約数和(自身を除く): 89870281

約数列:

[1, 7, 11, 23, 77, 161, 191, 253, 859, 1337, 1771, 2101, 4393, 6013, 9449, 14707, 19757, 30751, 48323, 66143, 138299, 164069, 217327, 338261, 1148483, 1521289, 1804759, 3773587, 12633313, 26415109, 41509457, 290566199]

約数ペア:

[(1, 290566199), (7, 41509457), (11, 26415109), (23, 12633313), (77, 3773587), (161, 1804759), (191, 1521289), (253, 1148483), (859, 338261), (1337, 217327), (1771, 164069), (2101, 138299), (4393, 66143), (6013, 48323), (9449, 30751), (14707, 19757)]