257887966

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{349}}^1\times {\mathrm{1123}}^1$

素因数の和:1528

約数の個数: 32

約数和(自身を含む): 453196800

約数和(自身を除く): 195308834

約数列:

[1, 2, 7, 14, 47, 94, 329, 349, 658, 698, 1123, 2246, 2443, 4886, 7861, 15722, 16403, 32806, 52781, 105562, 114821, 229642, 369467, 391927, 738934, 783854, 2743489, 5486978, 18420569, 36841138, 128943983, 257887966]

約数ペア:

[(1, 257887966), (2, 128943983), (7, 36841138), (14, 18420569), (47, 5486978), (94, 2743489), (329, 783854), (349, 738934), (658, 391927), (698, 369467), (1123, 229642), (2246, 114821), (2443, 105562), (4886, 52781), (7861, 32806), (15722, 16403)]