678319587

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1$

素因数の和:413

約数の個数: 72

約数和(自身を含む): 1131346944

約数和(自身を除く): 453027357

約数列:

[1, 3, 9, 11, 31, 33, 71, 93, 99, 121, 213, 279, 283, 341, 363, 639, 781, 849, 1023, 1089, 2201, 2343, 2547, 3069, 3113, 3751, 6603, 7029, 8591, 8773, 9339, 11253, 19809, 20093, 24211, 25773, 26319, 28017, 33759, 34243, 60279, 72633, 77319, 78957, 96503, 102729, 180837, 217899, 221023, 266321, 289509, 308187, 622883, 663069, 798963, 868527, 1061533, 1868649, 1989207, 2396889, 2431253, 3184599, 5605947, 6851713, 7293759, 9553797, 20555139, 21881277, 61665417, 75368843, 226106529, 678319587]

約数ペア:

[(1, 678319587), (3, 226106529), (9, 75368843), (11, 61665417), (31, 21881277), (33, 20555139), (71, 9553797), (93, 7293759), (99, 6851713), (121, 5605947), (213, 3184599), (279, 2431253), (283, 2396889), (341, 1989207), (363, 1868649), (639, 1061533), (781, 868527), (849, 798963), (1023, 663069), (1089, 622883), (2201, 308187), (2343, 289509), (2547, 266321), (3069, 221023), (3113, 217899), (3751, 180837), (6603, 102729), (7029, 96503), (8591, 78957), (8773, 77319), (9339, 72633), (11253, 60279), (19809, 34243), (20093, 33759), (24211, 28017), (25773, 26319)]