81216065

素因数分解:

$5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{12149}}^1$

素因数の和:12352

約数の個数: 16

約数和(自身を含む): 111974400

約数和(自身を除く): 30758335

約数列:

[1, 5, 7, 35, 191, 955, 1337, 6685, 12149, 60745, 85043, 425215, 2320459, 11602295, 16243213, 81216065]

約数ペア:

[(1, 81216065), (5, 16243213), (7, 11602295), (35, 2320459), (191, 425215), (955, 85043), (1337, 60745), (6685, 12149)]