19668505

素因数分解:

$5^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1\times {\mathrm{239}}^1$

素因数の和:504

約数の個数: 16

約数和(自身を含む): 24076800

約数和(自身を除く): 4408295

約数列:

[1, 5, 109, 151, 239, 545, 755, 1195, 16459, 26051, 36089, 82295, 130255, 180445, 3933701, 19668505]

約数ペア:

[(1, 19668505), (5, 3933701), (109, 180445), (151, 130255), (239, 82295), (545, 36089), (755, 26051), (1195, 16459)]