164243540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{200297}}^1$

素因数の和:200347

約数の個数: 24

約数和(自身を含む): 353325672

約数和(自身を除く): 189082132

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 200297, 400594, 801188, 1001485, 2002970, 4005940, 8212177, 16424354, 32848708, 41060885, 82121770, 164243540]

約数ペア:

[(1, 164243540), (2, 82121770), (4, 41060885), (5, 32848708), (10, 16424354), (20, 8212177), (41, 4005940), (82, 2002970), (164, 1001485), (205, 801188), (410, 400594), (820, 200297)]