20565643984

素因数分解:

$2^4\times {\mathrm{449}}^1\times {\mathrm{2862701}}^1$

素因数の和:2863158

約数の個数: 20

約数和(自身を含む): 39934692900

約数和(自身を除く): 19369048916

約数列:

[1, 2, 4, 8, 16, 449, 898, 1796, 3592, 7184, 2862701, 5725402, 11450804, 22901608, 45803216, 1285352749, 2570705498, 5141410996, 10282821992, 20565643984]

約数ペア:

[(1, 20565643984), (2, 10282821992), (4, 5141410996), (8, 2570705498), (16, 1285352749), (449, 45803216), (898, 22901608), (1796, 11450804), (3592, 5725402), (7184, 2862701)]