278322860

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{541}}^1\times {\mathrm{887}}^1$

素因数の和:1466

約数の個数: 48

約数和(自身を含む): 606432960

約数和(自身を除く): 328110100

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 541, 580, 887, 1082, 1774, 2164, 2705, 3548, 4435, 5410, 8870, 10820, 15689, 17740, 25723, 31378, 51446, 62756, 78445, 102892, 128615, 156890, 257230, 313780, 479867, 514460, 959734, 1919468, 2399335, 4798670, 9597340, 13916143, 27832286, 55664572, 69580715, 139161430, 278322860]

約数ペア:

[(1, 278322860), (2, 139161430), (4, 69580715), (5, 55664572), (10, 27832286), (20, 13916143), (29, 9597340), (58, 4798670), (116, 2399335), (145, 1919468), (290, 959734), (541, 514460), (580, 479867), (887, 313780), (1082, 257230), (1774, 156890), (2164, 128615), (2705, 102892), (3548, 78445), (4435, 62756), (5410, 51446), (8870, 31378), (10820, 25723), (15689, 17740)]