19154820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2437}}^1$

素因数の和:2580

約数の個数: 48

約数和(自身を含む): 54065088

約数和(自身を除く): 34910268

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 393, 524, 655, 786, 1310, 1572, 1965, 2437, 2620, 3930, 4874, 7311, 7860, 9748, 12185, 14622, 24370, 29244, 36555, 48740, 73110, 146220, 319247, 638494, 957741, 1276988, 1596235, 1915482, 3192470, 3830964, 4788705, 6384940, 9577410, 19154820]

約数ペア:

[(1, 19154820), (2, 9577410), (3, 6384940), (4, 4788705), (5, 3830964), (6, 3192470), (10, 1915482), (12, 1596235), (15, 1276988), (20, 957741), (30, 638494), (60, 319247), (131, 146220), (262, 73110), (393, 48740), (524, 36555), (655, 29244), (786, 24370), (1310, 14622), (1572, 12185), (1965, 9748), (2437, 7860), (2620, 7311), (3930, 4874)]