20384090

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18701}}^1$

素因数の和:18817

約数の個数: 16

約数和(自身を含む): 37029960

約数和(自身を除く): 16645870

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 18701, 37402, 93505, 187010, 2038409, 4076818, 10192045, 20384090]

約数ペア:

[(1, 20384090), (2, 10192045), (5, 4076818), (10, 2038409), (109, 187010), (218, 93505), (545, 37402), (1090, 18701)]