487995981

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2\times {\mathrm{463}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 767493120

約数和(自身を除く): 279497139

約数列:

[1, 3, 11, 19, 33, 41, 57, 123, 209, 451, 463, 627, 779, 1353, 1389, 1681, 2337, 5043, 5093, 8569, 8797, 15279, 18491, 18983, 25707, 26391, 31939, 55473, 56949, 95817, 96767, 208813, 290301, 351329, 360677, 626439, 778303, 1053987, 1082031, 2334909, 3967447, 8561333, 11902341, 14787757, 25683999, 44363271, 162665327, 487995981]

約数ペア:

[(1, 487995981), (3, 162665327), (11, 44363271), (19, 25683999), (33, 14787757), (41, 11902341), (57, 8561333), (123, 3967447), (209, 2334909), (451, 1082031), (463, 1053987), (627, 778303), (779, 626439), (1353, 360677), (1389, 351329), (1681, 290301), (2337, 208813), (5043, 96767), (5093, 95817), (8569, 56949), (8797, 55473), (15279, 31939), (18491, 26391), (18983, 25707)]