2051216620

素因数分解:

$2^2\times 5^1\times {\mathrm{1489}}^1\times {\mathrm{68879}}^1$

素因数の和:70377

約数の個数: 24

約数和(自身を含む): 4310510400

約数和(自身を除く): 2259293780

約数列:

[1, 2, 4, 5, 10, 20, 1489, 2978, 5956, 7445, 14890, 29780, 68879, 137758, 275516, 344395, 688790, 1377580, 102560831, 205121662, 410243324, 512804155, 1025608310, 2051216620]

約数ペア:

[(1, 2051216620), (2, 1025608310), (4, 512804155), (5, 410243324), (10, 205121662), (20, 102560831), (1489, 1377580), (2978, 688790), (5956, 344395), (7445, 275516), (14890, 137758), (29780, 68879)]