81437456

素因数分解:

$2^4\times {\mathrm{2011}}^1\times {\mathrm{2531}}^1$

素因数の和:4550

約数の個数: 20

約数和(自身を含む): 157925904

約数和(自身を除く): 76488448

約数列:

[1, 2, 4, 8, 16, 2011, 2531, 4022, 5062, 8044, 10124, 16088, 20248, 32176, 40496, 5089841, 10179682, 20359364, 40718728, 81437456]

約数ペア:

[(1, 81437456), (2, 40718728), (4, 20359364), (8, 10179682), (16, 5089841), (2011, 40496), (2531, 32176), (4022, 20248), (5062, 16088), (8044, 10124)]