81303790

素因数分解:

$2^1\times 5^1\times {\mathrm{443}}^1\times {\mathrm{18353}}^1$

素因数の和:18803

約数の個数: 16

約数和(自身を含む): 146685168

約数和(自身を除く): 65381378

約数列:

[1, 2, 5, 10, 443, 886, 2215, 4430, 18353, 36706, 91765, 183530, 8130379, 16260758, 40651895, 81303790]

約数ペア:

[(1, 81303790), (2, 40651895), (5, 16260758), (10, 8130379), (443, 183530), (886, 91765), (2215, 36706), (4430, 18353)]