5431280

素因数分解:

$2^4\times 5^1\times {\mathrm{67891}}^1$

素因数の和:67904

約数の個数: 20

約数和(自身を含む): 12627912

約数和(自身を除く): 7196632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 67891, 135782, 271564, 339455, 543128, 678910, 1086256, 1357820, 2715640, 5431280]

約数ペア:

[(1, 5431280), (2, 2715640), (4, 1357820), (5, 1086256), (8, 678910), (10, 543128), (16, 339455), (20, 271564), (40, 135782), (80, 67891)]