20796611240

素因数分解:

$2^3\times 5^1\times {\mathrm{519915281}}^1$

素因数の和:519915292

約数の個数: 16

約数和(自身を含む): 46792375380

約数和(自身を除く): 25995764140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 519915281, 1039830562, 2079661124, 2599576405, 4159322248, 5199152810, 10398305620, 20796611240]

約数ペア:

[(1, 20796611240), (2, 10398305620), (4, 5199152810), (5, 4159322248), (8, 2599576405), (10, 2079661124), (20, 1039830562), (40, 519915281)]