78859692020

素因数分解:

$2^2\times 5^1\times {\mathrm{3942984601}}^1$

素因数の和:3942984610

約数の個数: 12

約数和(自身を含む): 165605353284

約数和(自身を除く): 86745661264

約数列:

[1, 2, 4, 5, 10, 20, 3942984601, 7885969202, 15771938404, 19714923005, 39429846010, 78859692020]

約数ペア:

[(1, 78859692020), (2, 39429846010), (4, 19714923005), (5, 15771938404), (10, 7885969202), (20, 3942984601)]