20012390

素因数分解:

$2^1\times 5^1\times {\mathrm{1171}}^1\times {\mathrm{1709}}^1$

素因数の和:2887

約数の個数: 16

約数和(自身を含む): 36074160

約数和(自身を除く): 16061770

約数列:

[1, 2, 5, 10, 1171, 1709, 2342, 3418, 5855, 8545, 11710, 17090, 2001239, 4002478, 10006195, 20012390]

約数ペア:

[(1, 20012390), (2, 10006195), (5, 4002478), (10, 2001239), (1171, 17090), (1709, 11710), (2342, 8545), (3418, 5855)]