26440720

素因数分解:

$2^4\times 5^1\times {\mathrm{330509}}^1$

素因数の和:330522

約数の個数: 20

約数和(自身を含む): 61474860

約数和(自身を除く): 35034140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 330509, 661018, 1322036, 1652545, 2644072, 3305090, 5288144, 6610180, 13220360, 26440720]

約数ペア:

[(1, 26440720), (2, 13220360), (4, 6610180), (5, 5288144), (8, 3305090), (10, 2644072), (16, 1652545), (20, 1322036), (40, 661018), (80, 330509)]