20318372260

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{7308767}}^1$

素因数の和:7308915

約数の個数: 24

約数和(自身を含む): 42975555840

約数和(自身を除く): 22657183580

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 7308767, 14617534, 29235068, 36543835, 73087670, 146175340, 1015918613, 2031837226, 4063674452, 5079593065, 10159186130, 20318372260]

約数ペア:

[(1, 20318372260), (2, 10159186130), (4, 5079593065), (5, 4063674452), (10, 2031837226), (20, 1015918613), (139, 146175340), (278, 73087670), (556, 36543835), (695, 29235068), (1390, 14617534), (2780, 7308767)]