28425980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{129209}}^1$

素因数の和:129229

約数の個数: 24

約数和(自身を含む): 65121840

約数和(自身を除く): 36695860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 129209, 258418, 516836, 646045, 1292090, 1421299, 2584180, 2842598, 5685196, 7106495, 14212990, 28425980]

約数ペア:

[(1, 28425980), (2, 14212990), (4, 7106495), (5, 5685196), (10, 2842598), (11, 2584180), (20, 1421299), (22, 1292090), (44, 646045), (55, 516836), (110, 258418), (220, 129209)]