20199755978

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1\times {\mathrm{328633}}^1$

素因数の和:329129

約数の個数: 16

約数和(自身を含む): 30787747656

約数和(自身を除く): 10587991678

約数列:

[1, 2, 73, 146, 421, 842, 30733, 61466, 328633, 657266, 23990209, 47980418, 138354493, 276708986, 10099877989, 20199755978]

約数ペア:

[(1, 20199755978), (2, 10099877989), (73, 276708986), (146, 138354493), (421, 47980418), (842, 23990209), (30733, 657266), (61466, 328633)]