81947456

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{67391}}^1$

素因数の和:67422

約数の個数: 28

約数和(自身を含む): 171175680

約数和(自身を除く): 89228224

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 152, 304, 608, 1216, 67391, 134782, 269564, 539128, 1078256, 1280429, 2156512, 2560858, 4313024, 5121716, 10243432, 20486864, 40973728, 81947456]

約数ペア:

[(1, 81947456), (2, 40973728), (4, 20486864), (8, 10243432), (16, 5121716), (19, 4313024), (32, 2560858), (38, 2156512), (64, 1280429), (76, 1078256), (152, 539128), (304, 269564), (608, 134782), (1216, 67391)]