81128564

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{167621}}^1$

素因数の和:167647

約数の個数: 18

約数和(自身を含む): 156056082

約数和(自身を除く): 74927518

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 167621, 335242, 670484, 1843831, 3687662, 7375324, 20282141, 40564282, 81128564]

約数ペア:

[(1, 81128564), (2, 40564282), (4, 20282141), (11, 7375324), (22, 3687662), (44, 1843831), (121, 670484), (242, 335242), (484, 167621)]