20849120

素因数分解:

$2^5\times 5^1\times {\mathrm{130307}}^1$

素因数の和:130322

約数の個数: 24

約数和(自身を含む): 49256424

約数和(自身を除く): 28407304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 130307, 260614, 521228, 651535, 1042456, 1303070, 2084912, 2606140, 4169824, 5212280, 10424560, 20849120]

約数ペア:

[(1, 20849120), (2, 10424560), (4, 5212280), (5, 4169824), (8, 2606140), (10, 2084912), (16, 1303070), (20, 1042456), (32, 651535), (40, 521228), (80, 260614), (160, 130307)]