20896900

素因数分解:

$2^2\times 5^2\times {\mathrm{101}}^1\times {\mathrm{2069}}^1$

素因数の和:2184

約数の個数: 36

約数和(自身を含む): 45817380

約数和(自身を除く): 24920480

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 101, 202, 404, 505, 1010, 2020, 2069, 2525, 4138, 5050, 8276, 10100, 10345, 20690, 41380, 51725, 103450, 206900, 208969, 417938, 835876, 1044845, 2089690, 4179380, 5224225, 10448450, 20896900]

約数ペア:

[(1, 20896900), (2, 10448450), (4, 5224225), (5, 4179380), (10, 2089690), (20, 1044845), (25, 835876), (50, 417938), (100, 208969), (101, 206900), (202, 103450), (404, 51725), (505, 41380), (1010, 20690), (2020, 10345), (2069, 10100), (2525, 8276), (4138, 5050)]