980049940

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{111623}}^1$

素因数の和:112071

約数の個数: 24

約数和(自身を含む): 2062811520

約数和(自身を除く): 1082761580

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 4390, 8780, 111623, 223246, 446492, 558115, 1116230, 2232460, 49002497, 98004994, 196009988, 245012485, 490024970, 980049940]

約数ペア:

[(1, 980049940), (2, 490024970), (4, 245012485), (5, 196009988), (10, 98004994), (20, 49002497), (439, 2232460), (878, 1116230), (1756, 558115), (2195, 446492), (4390, 223246), (8780, 111623)]