213520220

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{65497}}^1$

素因数の和:65669

約数の個数: 24

約数和(自身を含む): 451150224

約数和(自身を除く): 237630004

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 65497, 130994, 261988, 327485, 654970, 1309940, 10676011, 21352022, 42704044, 53380055, 106760110, 213520220]

約数ペア:

[(1, 213520220), (2, 106760110), (4, 53380055), (5, 42704044), (10, 21352022), (20, 10676011), (163, 1309940), (326, 654970), (652, 327485), (815, 261988), (1630, 130994), (3260, 65497)]