85391420

素因数分解:

$2^2\times 5^1\times {\mathrm{4269571}}^1$

素因数の和:4269580

約数の個数: 12

約数和(自身を含む): 179322024

約数和(自身を除く): 93930604

約数列:

[1, 2, 4, 5, 10, 20, 4269571, 8539142, 17078284, 21347855, 42695710, 85391420]

約数ペア:

[(1, 85391420), (2, 42695710), (4, 21347855), (5, 17078284), (10, 8539142), (20, 4269571)]