20618460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{114547}}^1$

素因数の和:114562

約数の個数: 36

約数和(自身を含む): 62543208

約数和(自身を除く): 41924748

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 114547, 229094, 343641, 458188, 572735, 687282, 1030923, 1145470, 1374564, 1718205, 2061846, 2290940, 3436410, 4123692, 5154615, 6872820, 10309230, 20618460]

約数ペア:

[(1, 20618460), (2, 10309230), (3, 6872820), (4, 5154615), (5, 4123692), (6, 3436410), (9, 2290940), (10, 2061846), (12, 1718205), (15, 1374564), (18, 1145470), (20, 1030923), (30, 687282), (36, 572735), (45, 458188), (60, 343641), (90, 229094), (180, 114547)]