20843540

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{2903}}^1$

素因数の和:3271

約数の個数: 24

約数和(自身を含む): 43908480

約数和(自身を除く): 23064940

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1795, 2903, 3590, 5806, 7180, 11612, 14515, 29030, 58060, 1042177, 2084354, 4168708, 5210885, 10421770, 20843540]

約数ペア:

[(1, 20843540), (2, 10421770), (4, 5210885), (5, 4168708), (10, 2084354), (20, 1042177), (359, 58060), (718, 29030), (1436, 14515), (1795, 11612), (2903, 7180), (3590, 5806)]