18978660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{105437}}^1$

素因数の和:105452

約数の個数: 36

約数和(自身を含む): 57569148

約数和(自身を除く): 38590488

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 105437, 210874, 316311, 421748, 527185, 632622, 948933, 1054370, 1265244, 1581555, 1897866, 2108740, 3163110, 3795732, 4744665, 6326220, 9489330, 18978660]

約数ペア:

[(1, 18978660), (2, 9489330), (3, 6326220), (4, 4744665), (5, 3795732), (6, 3163110), (9, 2108740), (10, 1897866), (12, 1581555), (15, 1265244), (18, 1054370), (20, 948933), (30, 632622), (36, 527185), (45, 421748), (60, 316311), (90, 210874), (180, 105437)]