20354140

素因数分解:

$2^2\times 5^1\times {\mathrm{839}}^1\times {\mathrm{1213}}^1$

素因数の和:2061

約数の個数: 24

約数和(自身を含む): 42829920

約数和(自身を除く): 22475780

約数列:

[1, 2, 4, 5, 10, 20, 839, 1213, 1678, 2426, 3356, 4195, 4852, 6065, 8390, 12130, 16780, 24260, 1017707, 2035414, 4070828, 5088535, 10177070, 20354140]

約数ペア:

[(1, 20354140), (2, 10177070), (4, 5088535), (5, 4070828), (10, 2035414), (20, 1017707), (839, 24260), (1213, 16780), (1678, 12130), (2426, 8390), (3356, 6065), (4195, 4852)]