20830860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{115727}}^1$

素因数の和:115742

約数の個数: 36

約数和(自身を含む): 63187488

約数和(自身を除く): 42356628

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 115727, 231454, 347181, 462908, 578635, 694362, 1041543, 1157270, 1388724, 1735905, 2083086, 2314540, 3471810, 4166172, 5207715, 6943620, 10415430, 20830860]

約数ペア:

[(1, 20830860), (2, 10415430), (3, 6943620), (4, 5207715), (5, 4166172), (6, 3471810), (9, 2314540), (10, 2083086), (12, 1735905), (15, 1388724), (18, 1157270), (20, 1041543), (30, 694362), (36, 578635), (45, 462908), (60, 347181), (90, 231454), (180, 115727)]