77817278

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:749

約数の個数: 48

約数和(自身を含む): 148925952

約数和(自身を除く): 71108674

約数列:

[1, 2, 7, 11, 14, 22, 71, 77, 121, 142, 154, 242, 497, 647, 781, 847, 994, 1294, 1562, 1694, 4529, 5467, 7117, 8591, 9058, 10934, 14234, 17182, 45937, 49819, 60137, 78287, 91874, 99638, 120274, 156574, 321559, 505307, 548009, 643118, 1010614, 1096018, 3537149, 5558377, 7074298, 11116754, 38908639, 77817278]

約数ペア:

[(1, 77817278), (2, 38908639), (7, 11116754), (11, 7074298), (14, 5558377), (22, 3537149), (71, 1096018), (77, 1010614), (121, 643118), (142, 548009), (154, 505307), (242, 321559), (497, 156574), (647, 120274), (781, 99638), (847, 91874), (994, 78287), (1294, 60137), (1562, 49819), (1694, 45937), (4529, 17182), (5467, 14234), (7117, 10934), (8591, 9058)]