1809398785

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{643}}^1\times {\mathrm{1559}}^1$

素因数の和:2245

約数の個数: 24

約数和(自身を含む): 2296607040

約数和(自身を除く): 487208255

約数列:

[1, 5, 19, 95, 361, 643, 1559, 1805, 3215, 7795, 12217, 29621, 61085, 148105, 232123, 562799, 1002437, 1160615, 2813995, 5012185, 19046303, 95231515, 361879757, 1809398785]

約数ペア:

[(1, 1809398785), (5, 361879757), (19, 95231515), (95, 19046303), (361, 5012185), (643, 2813995), (1559, 1160615), (1805, 1002437), (3215, 562799), (7795, 232123), (12217, 148105), (29621, 61085)]