81268010

素因数分解:

$2^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{28921}}^1$

素因数の和:29209

約数の個数: 16

約数和(自身を含む): 146808072

約数和(自身を除く): 65540062

約数列:

[1, 2, 5, 10, 281, 562, 1405, 2810, 28921, 57842, 144605, 289210, 8126801, 16253602, 40634005, 81268010]

約数ペア:

[(1, 81268010), (2, 40634005), (5, 16253602), (10, 8126801), (281, 289210), (562, 144605), (1405, 57842), (2810, 28921)]