128429266

素因数分解:

$2^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{20431}}^1$

素因数の和:20889

約数の個数: 16

約数和(自身を含む): 220665600

約数和(自身を除く): 92236334

約数列:

[1, 2, 7, 14, 449, 898, 3143, 6286, 20431, 40862, 143017, 286034, 9173519, 18347038, 64214633, 128429266]

約数ペア:

[(1, 128429266), (2, 64214633), (7, 18347038), (14, 9173519), (449, 286034), (898, 143017), (3143, 40862), (6286, 20431)]