257678834

素因数分解:

$2^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{1289}}^1$

素因数の和:1538

約数の個数: 32

約数和(自身を含む): 449539200

約数和(自身を除く): 191860366

約数列:

[1, 2, 7, 14, 109, 131, 218, 262, 763, 917, 1289, 1526, 1834, 2578, 9023, 14279, 18046, 28558, 99953, 140501, 168859, 199906, 281002, 337718, 983507, 1182013, 1967014, 2364026, 18405631, 36811262, 128839417, 257678834]

約数ペア:

[(1, 257678834), (2, 128839417), (7, 36811262), (14, 18405631), (109, 2364026), (131, 1967014), (218, 1182013), (262, 983507), (763, 337718), (917, 281002), (1289, 199906), (1526, 168859), (1834, 140501), (2578, 99953), (9023, 28558), (14279, 18046)]