20872255

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{439}}^1$

素因数の和:738

約数の個数: 16

約数和(自身を含む): 25882560

約数和(自身を除く): 5010305

約数列:

[1, 5, 37, 185, 257, 439, 1285, 2195, 9509, 16243, 47545, 81215, 112823, 564115, 4174451, 20872255]

約数ペア:

[(1, 20872255), (5, 4174451), (37, 564115), (185, 112823), (257, 81215), (439, 47545), (1285, 16243), (2195, 9509)]