287798985

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{823}}^1$

素因数の和:1262

約数の個数: 48

約数和(自身を含む): 527030400

約数和(自身を除く): 239231415

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 409, 823, 855, 1227, 2045, 2469, 3681, 4115, 6135, 7407, 7771, 12345, 15637, 18405, 23313, 37035, 38855, 46911, 69939, 78185, 116565, 140733, 234555, 336607, 349695, 703665, 1009821, 1683035, 3029463, 5049105, 6395533, 15147315, 19186599, 31977665, 57559797, 95932995, 287798985]

約数ペア:

[(1, 287798985), (3, 95932995), (5, 57559797), (9, 31977665), (15, 19186599), (19, 15147315), (45, 6395533), (57, 5049105), (95, 3029463), (171, 1683035), (285, 1009821), (409, 703665), (823, 349695), (855, 336607), (1227, 234555), (2045, 140733), (2469, 116565), (3681, 78185), (4115, 69939), (6135, 46911), (7407, 38855), (7771, 37035), (12345, 23313), (15637, 18405)]