79776820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{209939}}^1$

素因数の和:209967

約数の個数: 24

約数和(自身を含む): 176349600

約数和(自身を除く): 96572780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 209939, 419878, 839756, 1049695, 2099390, 3988841, 4198780, 7977682, 15955364, 19944205, 39888410, 79776820]

約数ペア:

[(1, 79776820), (2, 39888410), (4, 19944205), (5, 15955364), (10, 7977682), (19, 4198780), (20, 3988841), (38, 2099390), (76, 1049695), (95, 839756), (190, 419878), (380, 209939)]