84877640

素因数分解:

$2^3\times 5^1\times {\mathrm{2121941}}^1$

素因数の和:2121952

約数の個数: 16

約数和(自身を含む): 190974780

約数和(自身を除く): 106097140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2121941, 4243882, 8487764, 10609705, 16975528, 21219410, 42438820, 84877640]

約数ペア:

[(1, 84877640), (2, 42438820), (4, 21219410), (5, 16975528), (8, 10609705), (10, 8487764), (20, 4243882), (40, 2121941)]