169380920

素因数分解:

$2^3\times 5^1\times {\mathrm{2029}}^1\times {\mathrm{2087}}^1$

素因数の和:4127

約数の個数: 32

約数和(自身を含む): 381477600

約数和(自身を除く): 212096680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2029, 2087, 4058, 4174, 8116, 8348, 10145, 10435, 16232, 16696, 20290, 20870, 40580, 41740, 81160, 83480, 4234523, 8469046, 16938092, 21172615, 33876184, 42345230, 84690460, 169380920]

約数ペア:

[(1, 169380920), (2, 84690460), (4, 42345230), (5, 33876184), (8, 21172615), (10, 16938092), (20, 8469046), (40, 4234523), (2029, 83480), (2087, 81160), (4058, 41740), (4174, 40580), (8116, 20870), (8348, 20290), (10145, 16696), (10435, 16232)]