128739026

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{263}}^1\times {\mathrm{281}}^1$

素因数の和:626

約数の個数: 32

約数和(自身を含む): 212623488

約数和(自身を除く): 83884462

約数列:

[1, 2, 13, 26, 67, 134, 263, 281, 526, 562, 871, 1742, 3419, 3653, 6838, 7306, 17621, 18827, 35242, 37654, 73903, 147806, 229073, 244751, 458146, 489502, 960739, 1921478, 4951501, 9903002, 64369513, 128739026]

約数ペア:

[(1, 128739026), (2, 64369513), (13, 9903002), (26, 4951501), (67, 1921478), (134, 960739), (263, 489502), (281, 458146), (526, 244751), (562, 229073), (871, 147806), (1742, 73903), (3419, 37654), (3653, 35242), (6838, 18827), (7306, 17621)]