20892220

素因数分解:

$2^2\times 5^1\times {\mathrm{677}}^1\times {\mathrm{1543}}^1$

素因数の和:2229

約数の個数: 24

約数和(自身を含む): 43966944

約数和(自身を除く): 23074724

約数列:

[1, 2, 4, 5, 10, 20, 677, 1354, 1543, 2708, 3086, 3385, 6172, 6770, 7715, 13540, 15430, 30860, 1044611, 2089222, 4178444, 5223055, 10446110, 20892220]

約数ペア:

[(1, 20892220), (2, 10446110), (4, 5223055), (5, 4178444), (10, 2089222), (20, 1044611), (677, 30860), (1354, 15430), (1543, 13540), (2708, 7715), (3086, 6770), (3385, 6172)]