85301780

素因数分解:

$2^2\times 5^1\times {\mathrm{4265089}}^1$

素因数の和:4265098

約数の個数: 12

約数和(自身を含む): 179133780

約数和(自身を除く): 93832000

約数列:

[1, 2, 4, 5, 10, 20, 4265089, 8530178, 17060356, 21325445, 42650890, 85301780]

約数ペア:

[(1, 85301780), (2, 42650890), (4, 21325445), (5, 17060356), (10, 8530178), (20, 4265089)]