212601820

素因数分解:

$2^2\times 5^1\times {\mathrm{10630091}}^1$

素因数の和:10630100

約数の個数: 12

約数和(自身を含む): 446463864

約数和(自身を除く): 233862044

約数列:

[1, 2, 4, 5, 10, 20, 10630091, 21260182, 42520364, 53150455, 106300910, 212601820]

約数ペア:

[(1, 212601820), (2, 106300910), (4, 53150455), (5, 42520364), (10, 21260182), (20, 10630091)]