28642340

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{10303}}^1$

素因数の和:10451

約数の個数: 24

約数和(自身を含む): 60587520

約数和(自身を除く): 31945180

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 10303, 20606, 41212, 51515, 103030, 206060, 1432117, 2864234, 5728468, 7160585, 14321170, 28642340]

約数ペア:

[(1, 28642340), (2, 14321170), (4, 7160585), (5, 5728468), (10, 2864234), (20, 1432117), (139, 206060), (278, 103030), (556, 51515), (695, 41212), (1390, 20606), (2780, 10303)]