278718980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{8837}}^1$

素因数の和:8948

約数の個数: 48

約数和(自身を含む): 623609280

約数和(自身を除く): 344890300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 83, 95, 166, 190, 332, 380, 415, 830, 1577, 1660, 3154, 6308, 7885, 8837, 15770, 17674, 31540, 35348, 44185, 88370, 167903, 176740, 335806, 671612, 733471, 839515, 1466942, 1679030, 2933884, 3358060, 3667355, 7334710, 13935949, 14669420, 27871898, 55743796, 69679745, 139359490, 278718980]

約数ペア:

[(1, 278718980), (2, 139359490), (4, 69679745), (5, 55743796), (10, 27871898), (19, 14669420), (20, 13935949), (38, 7334710), (76, 3667355), (83, 3358060), (95, 2933884), (166, 1679030), (190, 1466942), (332, 839515), (380, 733471), (415, 671612), (830, 335806), (1577, 176740), (1660, 167903), (3154, 88370), (6308, 44185), (7885, 35348), (8837, 31540), (15770, 17674)]