85840180

素因数分解:

$2^2\times 5^1\times {\mathrm{4292009}}^1$

素因数の和:4292018

約数の個数: 12

約数和(自身を含む): 180264420

約数和(自身を除く): 94424240

約数列:

[1, 2, 4, 5, 10, 20, 4292009, 8584018, 17168036, 21460045, 42920090, 85840180]

約数ペア:

[(1, 85840180), (2, 42920090), (4, 21460045), (5, 17168036), (10, 8584018), (20, 4292009)]