81991468

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{54371}}^1$

素因数の和:54417

約数の個数: 24

約数和(自身を含む): 159853680

約数和(自身を除く): 77862212

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 116, 377, 754, 1508, 54371, 108742, 217484, 706823, 1413646, 1576759, 2827292, 3153518, 6307036, 20497867, 40995734, 81991468]

約数ペア:

[(1, 81991468), (2, 40995734), (4, 20497867), (13, 6307036), (26, 3153518), (29, 2827292), (52, 1576759), (58, 1413646), (116, 706823), (377, 217484), (754, 108742), (1508, 54371)]