209218025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{337}}^1\times {\mathrm{1307}}^1$

素因数の和:1673

約数の個数: 24

約数和(自身を含む): 274104480

約数和(自身を除く): 64886455

約数列:

[1, 5, 19, 25, 95, 337, 475, 1307, 1685, 6403, 6535, 8425, 24833, 32015, 32675, 124165, 160075, 440459, 620825, 2202295, 8368721, 11011475, 41843605, 209218025]

約数ペア:

[(1, 209218025), (5, 41843605), (19, 11011475), (25, 8368721), (95, 2202295), (337, 620825), (475, 440459), (1307, 160075), (1685, 124165), (6403, 32675), (6535, 32015), (8425, 24833)]