81660276

素因数分解:

$2^2\times 3^2\times {\mathrm{139}}^1\times {\mathrm{16319}}^1$

素因数の和:16468

約数の個数: 36

約数和(自身を含む): 207916800

約数和(自身を除く): 126256524

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 139, 278, 417, 556, 834, 1251, 1668, 2502, 5004, 16319, 32638, 48957, 65276, 97914, 146871, 195828, 293742, 587484, 2268341, 4536682, 6805023, 9073364, 13610046, 20415069, 27220092, 40830138, 81660276]

約数ペア:

[(1, 81660276), (2, 40830138), (3, 27220092), (4, 20415069), (6, 13610046), (9, 9073364), (12, 6805023), (18, 4536682), (36, 2268341), (139, 587484), (278, 293742), (417, 195828), (556, 146871), (834, 97914), (1251, 65276), (1668, 48957), (2502, 32638), (5004, 16319)]