12903980

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{3343}}^1$

素因数の和:3545

約数の個数: 24

約数和(自身を含む): 27246912

約数和(自身を除く): 14342932

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3343, 3860, 6686, 13372, 16715, 33430, 66860, 645199, 1290398, 2580796, 3225995, 6451990, 12903980]

約数ペア:

[(1, 12903980), (2, 6451990), (4, 3225995), (5, 2580796), (10, 1290398), (20, 645199), (193, 66860), (386, 33430), (772, 16715), (965, 13372), (1930, 6686), (3343, 3860)]