20077855

素因数分解:

$5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{4127}}^1$

素因数の和:4278

約数の個数: 16

約数和(自身を含む): 27740160

約数和(自身を除く): 7662305

約数列:

[1, 5, 7, 35, 139, 695, 973, 4127, 4865, 20635, 28889, 144445, 573653, 2868265, 4015571, 20077855]

約数ペア:

[(1, 20077855), (5, 4015571), (7, 2868265), (35, 573653), (139, 144445), (695, 28889), (973, 20635), (4127, 4865)]