51887815

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:224

約数の個数: 48

約数和(自身を含む): 76744800

約数和(自身を除く): 24856985

約数列:

[1, 5, 7, 29, 35, 49, 67, 109, 145, 203, 245, 335, 469, 545, 763, 1015, 1421, 1943, 2345, 3161, 3283, 3815, 5341, 7105, 7303, 9715, 13601, 15805, 16415, 22127, 26705, 36515, 51121, 68005, 95207, 110635, 154889, 211787, 255605, 357847, 476035, 774445, 1058935, 1482509, 1789235, 7412545, 10377563, 51887815]

約数ペア:

[(1, 51887815), (5, 10377563), (7, 7412545), (29, 1789235), (35, 1482509), (49, 1058935), (67, 774445), (109, 476035), (145, 357847), (203, 255605), (245, 211787), (335, 154889), (469, 110635), (545, 95207), (763, 68005), (1015, 51121), (1421, 36515), (1943, 26705), (2345, 22127), (3161, 16415), (3283, 15805), (3815, 13601), (5341, 9715), (7105, 7303)]