28907540

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{7489}}^1$

素因数の和:7691

約数の個数: 24

約数和(自身を含む): 61028520

約数和(自身を除く): 32120980

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860, 7489, 14978, 29956, 37445, 74890, 149780, 1445377, 2890754, 5781508, 7226885, 14453770, 28907540]

約数ペア:

[(1, 28907540), (2, 14453770), (4, 7226885), (5, 5781508), (10, 2890754), (20, 1445377), (193, 149780), (386, 74890), (772, 37445), (965, 29956), (1930, 14978), (3860, 7489)]