20199641872

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{30792137}}^1$

素因数の和:30792186

約数の個数: 20

約数和(自身を含む): 40091363676

約数和(自身を除く): 19891721804

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 30792137, 61584274, 123168548, 246337096, 492674192, 1262477617, 2524955234, 5049910468, 10099820936, 20199641872]

約数ペア:

[(1, 20199641872), (2, 10099820936), (4, 5049910468), (8, 2524955234), (16, 1262477617), (41, 492674192), (82, 246337096), (164, 123168548), (328, 61584274), (656, 30792137)]