18971220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{10903}}^1$

素因数の和:10944

約数の個数: 48

約数和(自身を含む): 54956160

約数和(自身を除く): 35984940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 870, 1740, 10903, 21806, 32709, 43612, 54515, 65418, 109030, 130836, 163545, 218060, 316187, 327090, 632374, 654180, 948561, 1264748, 1580935, 1897122, 3161870, 3794244, 4742805, 6323740, 9485610, 18971220]

約数ペア:

[(1, 18971220), (2, 9485610), (3, 6323740), (4, 4742805), (5, 3794244), (6, 3161870), (10, 1897122), (12, 1580935), (15, 1264748), (20, 948561), (29, 654180), (30, 632374), (58, 327090), (60, 316187), (87, 218060), (116, 163545), (145, 130836), (174, 109030), (290, 65418), (348, 54515), (435, 43612), (580, 32709), (870, 21806), (1740, 10903)]