201784820

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{28909}}^1$

素因数の和:29267

約数の個数: 24

約数和(自身を含む): 424977000

約数和(自身を除く): 223192180

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1396, 1745, 3490, 6980, 28909, 57818, 115636, 144545, 289090, 578180, 10089241, 20178482, 40356964, 50446205, 100892410, 201784820]

約数ペア:

[(1, 201784820), (2, 100892410), (4, 50446205), (5, 40356964), (10, 20178482), (20, 10089241), (349, 578180), (698, 289090), (1396, 144545), (1745, 115636), (3490, 57818), (6980, 28909)]