20368475

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{313}}^1$

素因数の和:479

約数の個数: 24

約数和(自身を含む): 26865840

約数和(自身を除く): 6497365

約数列:

[1, 5, 19, 25, 95, 137, 313, 475, 685, 1565, 2603, 3425, 5947, 7825, 13015, 29735, 42881, 65075, 148675, 214405, 814739, 1072025, 4073695, 20368475]

約数ペア:

[(1, 20368475), (5, 4073695), (19, 1072025), (25, 814739), (95, 214405), (137, 148675), (313, 65075), (475, 42881), (685, 29735), (1565, 13015), (2603, 7825), (3425, 5947)]