18991620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{105509}}^1$

素因数の和:105524

約数の個数: 36

約数和(自身を含む): 57608460

約数和(自身を除く): 38616840

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 105509, 211018, 316527, 422036, 527545, 633054, 949581, 1055090, 1266108, 1582635, 1899162, 2110180, 3165270, 3798324, 4747905, 6330540, 9495810, 18991620]

約数ペア:

[(1, 18991620), (2, 9495810), (3, 6330540), (4, 4747905), (5, 3798324), (6, 3165270), (9, 2110180), (10, 1899162), (12, 1582635), (15, 1266108), (18, 1055090), (20, 949581), (30, 633054), (36, 527545), (45, 422036), (60, 316527), (90, 211018), (180, 105509)]