128157485

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{7681}}^1$

素因数の和:7804

約数の個数: 16

約数和(自身を含む): 159293952

約数和(自身を除く): 31136467

約数列:

[1, 5, 47, 71, 235, 355, 3337, 7681, 16685, 38405, 361007, 545351, 1805035, 2726755, 25631497, 128157485]

約数ペア:

[(1, 128157485), (5, 25631497), (47, 2726755), (71, 1805035), (235, 545351), (355, 361007), (3337, 38405), (7681, 16685)]