68378968

素因数分解:

$2^3\times 7^1\times {\mathrm{499}}^1\times {\mathrm{2447}}^1$

素因数の和:2959

約数の個数: 32

約数和(自身を含む): 146880000

約数和(自身を除く): 78501032

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 499, 998, 1996, 2447, 3493, 3992, 4894, 6986, 9788, 13972, 17129, 19576, 27944, 34258, 68516, 137032, 1221053, 2442106, 4884212, 8547371, 9768424, 17094742, 34189484, 68378968]

約数ペア:

[(1, 68378968), (2, 34189484), (4, 17094742), (7, 9768424), (8, 8547371), (14, 4884212), (28, 2442106), (56, 1221053), (499, 137032), (998, 68516), (1996, 34258), (2447, 27944), (3493, 19576), (3992, 17129), (4894, 13972), (6986, 9788)]