20816105

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1\times {\mathrm{349}}^1$

素因数の和:584

約数の個数: 16

約数和(自身を含む): 25536000

約数和(自身を除く): 4719895

約数列:

[1, 5, 79, 151, 349, 395, 755, 1745, 11929, 27571, 52699, 59645, 137855, 263495, 4163221, 20816105]

約数ペア:

[(1, 20816105), (5, 4163221), (79, 263495), (151, 137855), (349, 59645), (395, 52699), (755, 27571), (1745, 11929)]