28760802020

素因数分解:

$2^2\times 5^1\times {\mathrm{1438040101}}^1$

素因数の和:1438040110

約数の個数: 12

約数和(自身を含む): 60397684284

約数和(自身を除く): 31636882264

約数列:

[1, 2, 4, 5, 10, 20, 1438040101, 2876080202, 5752160404, 7190200505, 14380401010, 28760802020]

約数ペア:

[(1, 28760802020), (2, 14380401010), (4, 7190200505), (5, 5752160404), (10, 2876080202), (20, 1438040101)]