80940208

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{25679}}^1$

素因数の和:25884

約数の個数: 20

約数和(自身を含む): 157623840

約数和(自身を除く): 76683632

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 25679, 51358, 102716, 205432, 410864, 5058763, 10117526, 20235052, 40470104, 80940208]

約数ペア:

[(1, 80940208), (2, 40470104), (4, 20235052), (8, 10117526), (16, 5058763), (197, 410864), (394, 205432), (788, 102716), (1576, 51358), (3152, 25679)]