78840170

素因数分解:

$2^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{28057}}^1$

素因数の和:28345

約数の個数: 16

約数和(自身を含む): 142422408

約数和(自身を除く): 63582238

約数列:

[1, 2, 5, 10, 281, 562, 1405, 2810, 28057, 56114, 140285, 280570, 7884017, 15768034, 39420085, 78840170]

約数ペア:

[(1, 78840170), (2, 39420085), (5, 15768034), (10, 7884017), (281, 280570), (562, 140285), (1405, 56114), (2810, 28057)]