81452590

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{280871}}^1$

素因数の和:280907

約数の個数: 16

約数和(自身を含む): 151670880

約数和(自身を除く): 70218290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 280871, 561742, 1404355, 2808710, 8145259, 16290518, 40726295, 81452590]

約数ペア:

[(1, 81452590), (2, 40726295), (5, 16290518), (10, 8145259), (29, 2808710), (58, 1404355), (145, 561742), (290, 280871)]