20105984

素因数分解:

$2^8\times {\mathrm{78539}}^1$

素因数の和:78555

約数の個数: 18

約数和(自身を含む): 40133940

約数和(自身を除く): 20027956

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 78539, 157078, 314156, 628312, 1256624, 2513248, 5026496, 10052992, 20105984]

約数ペア:

[(1, 20105984), (2, 10052992), (4, 5026496), (8, 2513248), (16, 1256624), (32, 628312), (64, 314156), (128, 157078), (256, 78539)]