20785340

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{24169}}^1$

素因数の和:24221

約数の個数: 24

約数和(自身を含む): 44666160

約数和(自身を除く): 23880820

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 24169, 48338, 96676, 120845, 241690, 483380, 1039267, 2078534, 4157068, 5196335, 10392670, 20785340]

約数ペア:

[(1, 20785340), (2, 10392670), (4, 5196335), (5, 4157068), (10, 2078534), (20, 1039267), (43, 483380), (86, 241690), (172, 120845), (215, 96676), (430, 48338), (860, 24169)]