81289530

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{18433}}^1$

素因数の和:18460

約数の個数: 72

約数和(自身を含む): 245872692

約数和(自身を除く): 164583162

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4410, 18433, 36866, 55299, 92165, 110598, 129031, 165897, 184330, 258062, 276495, 331794, 387093, 552990, 645155, 774186, 829485, 903217, 1161279, 1290310, 1658970, 1806434, 1935465, 2322558, 2709651, 3870930, 4516085, 5419302, 5806395, 8128953, 9032170, 11612790, 13548255, 16257906, 27096510, 40644765, 81289530]

約数ペア:

[(1, 81289530), (2, 40644765), (3, 27096510), (5, 16257906), (6, 13548255), (7, 11612790), (9, 9032170), (10, 8128953), (14, 5806395), (15, 5419302), (18, 4516085), (21, 3870930), (30, 2709651), (35, 2322558), (42, 1935465), (45, 1806434), (49, 1658970), (63, 1290310), (70, 1161279), (90, 903217), (98, 829485), (105, 774186), (126, 645155), (147, 552990), (210, 387093), (245, 331794), (294, 276495), (315, 258062), (441, 184330), (490, 165897), (630, 129031), (735, 110598), (882, 92165), (1470, 55299), (2205, 36866), (4410, 18433)]