20849580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{115831}}^1$

素因数の和:115846

約数の個数: 36

約数和(自身を含む): 63244272

約数和(自身を除く): 42394692

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 115831, 231662, 347493, 463324, 579155, 694986, 1042479, 1158310, 1389972, 1737465, 2084958, 2316620, 3474930, 4169916, 5212395, 6949860, 10424790, 20849580]

約数ペア:

[(1, 20849580), (2, 10424790), (3, 6949860), (4, 5212395), (5, 4169916), (6, 3474930), (9, 2316620), (10, 2084958), (12, 1737465), (15, 1389972), (18, 1158310), (20, 1042479), (30, 694986), (36, 579155), (45, 463324), (60, 347493), (90, 231662), (180, 115831)]