20849530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^4\times {\mathrm{73}}^1$

素因数の和:132

約数の個数: 40

約数和(自身を含む): 41213412

約数和(自身を除く): 20363882

約数列:

[1, 2, 5, 10, 13, 26, 65, 73, 130, 146, 169, 338, 365, 730, 845, 949, 1690, 1898, 2197, 4394, 4745, 9490, 10985, 12337, 21970, 24674, 28561, 57122, 61685, 123370, 142805, 160381, 285610, 320762, 801905, 1603810, 2084953, 4169906, 10424765, 20849530]

約数ペア:

[(1, 20849530), (2, 10424765), (5, 4169906), (10, 2084953), (13, 1603810), (26, 801905), (65, 320762), (73, 285610), (130, 160381), (146, 142805), (169, 123370), (338, 61685), (365, 57122), (730, 28561), (845, 24674), (949, 21970), (1690, 12337), (1898, 10985), (2197, 9490), (4394, 4745)]