20431291286

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{547}}^1\times {\mathrm{709}}^1$

素因数の和:1389

約数の個数: 64

約数和(自身を含む): 36305832960

約数和(自身を除く): 15874541674

約数列:

[1, 2, 7, 14, 53, 71, 106, 142, 371, 497, 547, 709, 742, 994, 1094, 1418, 3763, 3829, 4963, 7526, 7658, 9926, 26341, 28991, 37577, 38837, 50339, 52682, 57982, 75154, 77674, 100678, 202937, 263039, 271859, 352373, 387823, 405874, 526078, 543718, 704746, 775646, 2058361, 2667967, 2714761, 4116722, 5335934, 5429522, 14408527, 18675769, 20554619, 27535433, 28817054, 37351538, 41109238, 55070866, 143882333, 192748031, 287764666, 385496062, 1459377949, 2918755898, 10215645643, 20431291286]

約数ペア:

[(1, 20431291286), (2, 10215645643), (7, 2918755898), (14, 1459377949), (53, 385496062), (71, 287764666), (106, 192748031), (142, 143882333), (371, 55070866), (497, 41109238), (547, 37351538), (709, 28817054), (742, 27535433), (994, 20554619), (1094, 18675769), (1418, 14408527), (3763, 5429522), (3829, 5335934), (4963, 4116722), (7526, 2714761), (7658, 2667967), (9926, 2058361), (26341, 775646), (28991, 704746), (37577, 543718), (38837, 526078), (50339, 405874), (52682, 387823), (57982, 352373), (75154, 271859), (77674, 263039), (100678, 202937)]