208551505

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{2687}}^1$

素因数の和:2773

約数の個数: 24

約数和(自身を含む): 270369792

約数和(自身を除く): 61818287

約数列:

[1, 5, 19, 43, 95, 215, 361, 817, 1805, 2687, 4085, 13435, 15523, 51053, 77615, 115541, 255265, 577705, 970007, 2195279, 4850035, 10976395, 41710301, 208551505]

約数ペア:

[(1, 208551505), (5, 41710301), (19, 10976395), (43, 4850035), (95, 2195279), (215, 970007), (361, 577705), (817, 255265), (1805, 115541), (2687, 77615), (4085, 51053), (13435, 15523)]