128004784

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{89891}}^1$

素因数の和:89988

約数の個数: 20

約数和(自身を含む): 250798680

約数和(自身を除く): 122793896

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 89891, 179782, 359564, 719128, 1438256, 8000299, 16000598, 32001196, 64002392, 128004784]

約数ペア:

[(1, 128004784), (2, 64002392), (4, 32001196), (8, 16000598), (16, 8000299), (89, 1438256), (178, 719128), (356, 359564), (712, 179782), (1424, 89891)]