81905255

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{11243}}^1$

素因数の和:11326

約数の個数: 16

約数和(自身を含む): 103624704

約数和(自身を除く): 21719449

約数列:

[1, 5, 31, 47, 155, 235, 1457, 7285, 11243, 56215, 348533, 528421, 1742665, 2642105, 16381051, 81905255]

約数ペア:

[(1, 81905255), (5, 16381051), (31, 2642105), (47, 1742665), (155, 528421), (235, 348533), (1457, 56215), (7285, 11243)]