80990998

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{9001}}^1$

素因数の和:9423

約数の個数: 16

約数和(自身を含む): 132869520

約数和(自身を除く): 51878522

約数列:

[1, 2, 11, 22, 409, 818, 4499, 8998, 9001, 18002, 99011, 198022, 3681409, 7362818, 40495499, 80990998]

約数ペア:

[(1, 80990998), (2, 40495499), (11, 7362818), (22, 3681409), (409, 198022), (818, 99011), (4499, 18002), (8998, 9001)]