128515128

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{764971}}^1$

素因数の和:764987

約数の個数: 32

約数和(自身を含む): 367186560

約数和(自身を除く): 238671432

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 764971, 1529942, 2294913, 3059884, 4589826, 5354797, 6119768, 9179652, 10709594, 16064391, 18359304, 21419188, 32128782, 42838376, 64257564, 128515128]

約数ペア:

[(1, 128515128), (2, 64257564), (3, 42838376), (4, 32128782), (6, 21419188), (7, 18359304), (8, 16064391), (12, 10709594), (14, 9179652), (21, 6119768), (24, 5354797), (28, 4589826), (42, 3059884), (56, 2294913), (84, 1529942), (168, 764971)]