128885168

素因数分解:

$2^4\times {\mathrm{1217}}^1\times {\mathrm{6619}}^1$

素因数の和:7844

約数の個数: 20

約数和(自身を含む): 249957960

約数和(自身を除く): 121072792

約数列:

[1, 2, 4, 8, 16, 1217, 2434, 4868, 6619, 9736, 13238, 19472, 26476, 52952, 105904, 8055323, 16110646, 32221292, 64442584, 128885168]

約数ペア:

[(1, 128885168), (2, 64442584), (4, 32221292), (8, 16110646), (16, 8055323), (1217, 105904), (2434, 52952), (4868, 26476), (6619, 19472), (9736, 13238)]