20109861872

素因数分解:

$2^4\times {\mathrm{10151}}^1\times {\mathrm{123817}}^1$

素因数の和:133976

約数の個数: 20

約数和(自身を含む): 38967010416

約数和(自身を除く): 18857148544

約数列:

[1, 2, 4, 8, 16, 10151, 20302, 40604, 81208, 123817, 162416, 247634, 495268, 990536, 1981072, 1256866367, 2513732734, 5027465468, 10054930936, 20109861872]

約数ペア:

[(1, 20109861872), (2, 10054930936), (4, 5027465468), (8, 2513732734), (16, 1256866367), (10151, 1981072), (20302, 990536), (40604, 495268), (81208, 247634), (123817, 162416)]