140820028

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{445633}}^1$

素因数の和:445716

約数の個数: 12

約数和(自身を含む): 249555040

約数和(自身を除く): 108735012

約数列:

[1, 2, 4, 79, 158, 316, 445633, 891266, 1782532, 35205007, 70410014, 140820028]

約数ペア:

[(1, 140820028), (2, 70410014), (4, 35205007), (79, 1782532), (158, 891266), (316, 445633)]