81516430

素因数分解:

$2^1\times 5^1\times {\mathrm{443}}^1\times {\mathrm{18401}}^1$

素因数の和:18851

約数の個数: 16

約数和(自身を含む): 147068784

約数和(自身を除く): 65552354

約数列:

[1, 2, 5, 10, 443, 886, 2215, 4430, 18401, 36802, 92005, 184010, 8151643, 16303286, 40758215, 81516430]

約数ペア:

[(1, 81516430), (2, 40758215), (5, 16303286), (10, 8151643), (443, 184010), (886, 92005), (2215, 36802), (4430, 18401)]