80789872

素因数分解:

$2^4\times {\mathrm{251}}^1\times {\mathrm{20117}}^1$

素因数の和:20376

約数の個数: 20

約数和(自身を含む): 157161816

約数和(自身を除く): 76371944

約数列:

[1, 2, 4, 8, 16, 251, 502, 1004, 2008, 4016, 20117, 40234, 80468, 160936, 321872, 5049367, 10098734, 20197468, 40394936, 80789872]

約数ペア:

[(1, 80789872), (2, 40394936), (4, 20197468), (8, 10098734), (16, 5049367), (251, 321872), (502, 160936), (1004, 80468), (2008, 40234), (4016, 20117)]