18820600

素因数分解:

$2^3\times 5^2\times {\mathrm{139}}^1\times {\mathrm{677}}^1$

素因数の和:832

約数の個数: 48

約数和(自身を含む): 44137800

約数和(自身を除く): 25317200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 139, 200, 278, 556, 677, 695, 1112, 1354, 1390, 2708, 2780, 3385, 3475, 5416, 5560, 6770, 6950, 13540, 13900, 16925, 27080, 27800, 33850, 67700, 94103, 135400, 188206, 376412, 470515, 752824, 941030, 1882060, 2352575, 3764120, 4705150, 9410300, 18820600]

約数ペア:

[(1, 18820600), (2, 9410300), (4, 4705150), (5, 3764120), (8, 2352575), (10, 1882060), (20, 941030), (25, 752824), (40, 470515), (50, 376412), (100, 188206), (139, 135400), (200, 94103), (278, 67700), (556, 33850), (677, 27800), (695, 27080), (1112, 16925), (1354, 13900), (1390, 13540), (2708, 6950), (2780, 6770), (3385, 5560), (3475, 5416)]