405492020

素因数分解:

$2^2\times 5^1\times {\mathrm{20274601}}^1$

素因数の和:20274610

約数の個数: 12

約数和(自身を含む): 851533284

約数和(自身を除く): 446041264

約数列:

[1, 2, 4, 5, 10, 20, 20274601, 40549202, 81098404, 101373005, 202746010, 405492020]

約数ペア:

[(1, 405492020), (2, 202746010), (4, 101373005), (5, 81098404), (10, 40549202), (20, 20274601)]