20049980

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9733}}^1$

素因数の和:9845

約数の個数: 24

約数和(自身を含む): 42518112

約数和(自身を除く): 22468132

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 9733, 19466, 38932, 48665, 97330, 194660, 1002499, 2004998, 4009996, 5012495, 10024990, 20049980]

約数ペア:

[(1, 20049980), (2, 10024990), (4, 5012495), (5, 4009996), (10, 2004998), (20, 1002499), (103, 194660), (206, 97330), (412, 48665), (515, 38932), (1030, 19466), (2060, 9733)]