128740661

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1\times {\mathrm{1559}}^1$

素因数の和:1864

約数の個数: 16

約数和(自身を含む): 150958080

約数和(自身を除く): 22217419

約数列:

[1, 7, 47, 251, 329, 1559, 1757, 10913, 11797, 73273, 82579, 391309, 512911, 2739163, 18391523, 128740661]

約数ペア:

[(1, 128740661), (7, 18391523), (47, 2739163), (251, 512911), (329, 391309), (1559, 82579), (1757, 73273), (10913, 11797)]