81057580

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{94253}}^1$

素因数の和:94305

約数の個数: 24

約数和(自身を含む): 174181392

約数和(自身を除く): 93123812

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 94253, 188506, 377012, 471265, 942530, 1885060, 4052879, 8105758, 16211516, 20264395, 40528790, 81057580]

約数ペア:

[(1, 81057580), (2, 40528790), (4, 20264395), (5, 16211516), (10, 8105758), (20, 4052879), (43, 1885060), (86, 942530), (172, 471265), (215, 377012), (430, 188506), (860, 94253)]