85106020

素因数分解:

$2^2\times 5^1\times {\mathrm{4255301}}^1$

素因数の和:4255310

約数の個数: 12

約数和(自身を含む): 178722684

約数和(自身を除く): 93616664

約数列:

[1, 2, 4, 5, 10, 20, 4255301, 8510602, 17021204, 21276505, 42553010, 85106020]

約数ペア:

[(1, 85106020), (2, 42553010), (4, 21276505), (5, 17021204), (10, 8510602), (20, 4255301)]