81900650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{126001}}^1$

素因数の和:126026

約数の個数: 24

約数和(自身を含む): 164054604

約数和(自身を除く): 82153954

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 126001, 252002, 630005, 1260010, 1638013, 3150025, 3276026, 6300050, 8190065, 16380130, 40950325, 81900650]

約数ペア:

[(1, 81900650), (2, 40950325), (5, 16380130), (10, 8190065), (13, 6300050), (25, 3276026), (26, 3150025), (50, 1638013), (65, 1260010), (130, 630005), (325, 252002), (650, 126001)]