20539648

素因数分解:

$2^8\times {\mathrm{80233}}^1$

素因数の和:80249

約数の個数: 18

約数和(自身を含む): 40999574

約数和(自身を除く): 20459926

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 80233, 160466, 320932, 641864, 1283728, 2567456, 5134912, 10269824, 20539648]

約数ペア:

[(1, 20539648), (2, 10269824), (4, 5134912), (8, 2567456), (16, 1283728), (32, 641864), (64, 320932), (128, 160466), (256, 80233)]