18690580

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{1951}}^1$

素因数の和:2439

約数の個数: 24

約数和(自身を含む): 39352320

約数和(自身を除く): 20661740

約数列:

[1, 2, 4, 5, 10, 20, 479, 958, 1916, 1951, 2395, 3902, 4790, 7804, 9580, 9755, 19510, 39020, 934529, 1869058, 3738116, 4672645, 9345290, 18690580]

約数ペア:

[(1, 18690580), (2, 9345290), (4, 4672645), (5, 3738116), (10, 1869058), (20, 934529), (479, 39020), (958, 19510), (1916, 9755), (1951, 9580), (2395, 7804), (3902, 4790)]