87122900

素因数分解:

$2^2\times 5^2\times {\mathrm{871229}}^1$

素因数の和:871243

約数の個数: 18

約数和(自身を含む): 189056910

約数和(自身を除く): 101934010

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 871229, 1742458, 3484916, 4356145, 8712290, 17424580, 21780725, 43561450, 87122900]

約数ペア:

[(1, 87122900), (2, 43561450), (4, 21780725), (5, 17424580), (10, 8712290), (20, 4356145), (25, 3484916), (50, 1742458), (100, 871229)]