19145840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{191}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 51425280

約数和(自身を除く): 32279440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 179, 191, 280, 358, 382, 560, 716, 764, 895, 955, 1253, 1337, 1432, 1528, 1790, 1910, 2506, 2674, 2864, 3056, 3580, 3820, 5012, 5348, 6265, 6685, 7160, 7640, 10024, 10696, 12530, 13370, 14320, 15280, 20048, 21392, 25060, 26740, 34189, 50120, 53480, 68378, 100240, 106960, 136756, 170945, 239323, 273512, 341890, 478646, 547024, 683780, 957292, 1196615, 1367560, 1914584, 2393230, 2735120, 3829168, 4786460, 9572920, 19145840]

約数ペア:

[(1, 19145840), (2, 9572920), (4, 4786460), (5, 3829168), (7, 2735120), (8, 2393230), (10, 1914584), (14, 1367560), (16, 1196615), (20, 957292), (28, 683780), (35, 547024), (40, 478646), (56, 341890), (70, 273512), (80, 239323), (112, 170945), (140, 136756), (179, 106960), (191, 100240), (280, 68378), (358, 53480), (382, 50120), (560, 34189), (716, 26740), (764, 25060), (895, 21392), (955, 20048), (1253, 15280), (1337, 14320), (1432, 13370), (1528, 12530), (1790, 10696), (1910, 10024), (2506, 7640), (2674, 7160), (2864, 6685), (3056, 6265), (3580, 5348), (3820, 5012)]