278312980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{277}}^1\times {\mathrm{4567}}^1$

素因数の和:4864

約数の個数: 48

約数和(自身を含む): 640031616

約数和(自身を除く): 361718636

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 277, 554, 1108, 1385, 2770, 3047, 4567, 5540, 6094, 9134, 12188, 15235, 18268, 22835, 30470, 45670, 50237, 60940, 91340, 100474, 200948, 251185, 502370, 1004740, 1265059, 2530118, 5060236, 6325295, 12650590, 13915649, 25301180, 27831298, 55662596, 69578245, 139156490, 278312980]

約数ペア:

[(1, 278312980), (2, 139156490), (4, 69578245), (5, 55662596), (10, 27831298), (11, 25301180), (20, 13915649), (22, 12650590), (44, 6325295), (55, 5060236), (110, 2530118), (220, 1265059), (277, 1004740), (554, 502370), (1108, 251185), (1385, 200948), (2770, 100474), (3047, 91340), (4567, 60940), (5540, 50237), (6094, 45670), (9134, 30470), (12188, 22835), (15235, 18268)]