40389965

素因数分解:

$5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{2141}}^1$

素因数の和:2178

約数の個数: 32

約数和(自身を含む): 61689600

約数和(自身を除く): 21299635

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 343, 385, 539, 1715, 2141, 2695, 3773, 10705, 14987, 18865, 23551, 74935, 104909, 117755, 164857, 524545, 734363, 824285, 1153999, 3671815, 5769995, 8077993, 40389965]

約数ペア:

[(1, 40389965), (5, 8077993), (7, 5769995), (11, 3671815), (35, 1153999), (49, 824285), (55, 734363), (77, 524545), (245, 164857), (343, 117755), (385, 104909), (539, 74935), (1715, 23551), (2141, 18865), (2695, 14987), (3773, 10705)]