20278768

素因数分解:

$2^4\times {\mathrm{443}}^1\times {\mathrm{2861}}^1$

素因数の和:3312

約数の個数: 20

約数和(自身を含む): 39392568

約数和(自身を除く): 19113800

約数列:

[1, 2, 4, 8, 16, 443, 886, 1772, 2861, 3544, 5722, 7088, 11444, 22888, 45776, 1267423, 2534846, 5069692, 10139384, 20278768]

約数ペア:

[(1, 20278768), (2, 10139384), (4, 5069692), (8, 2534846), (16, 1267423), (443, 45776), (886, 22888), (1772, 11444), (2861, 7088), (3544, 5722)]