20608740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{114493}}^1$

素因数の和:114508

約数の個数: 36

約数和(自身を含む): 62513724

約数和(自身を除く): 41904984

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 114493, 228986, 343479, 457972, 572465, 686958, 1030437, 1144930, 1373916, 1717395, 2060874, 2289860, 3434790, 4121748, 5152185, 6869580, 10304370, 20608740]

約数ペア:

[(1, 20608740), (2, 10304370), (3, 6869580), (4, 5152185), (5, 4121748), (6, 3434790), (9, 2289860), (10, 2060874), (12, 1717395), (15, 1373916), (18, 1144930), (20, 1030437), (30, 686958), (36, 572465), (45, 457972), (60, 343479), (90, 228986), (180, 114493)]