85130180

素因数分解:

$2^2\times 5^1\times {\mathrm{4256509}}^1$

素因数の和:4256518

約数の個数: 12

約数和(自身を含む): 178773420

約数和(自身を除く): 93643240

約数列:

[1, 2, 4, 5, 10, 20, 4256509, 8513018, 17026036, 21282545, 42565090, 85130180]

約数ペア:

[(1, 85130180), (2, 42565090), (4, 21282545), (5, 17026036), (10, 8513018), (20, 4256509)]