2891140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{193}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 7039872

約数和(自身を除く): 4148732

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 107, 140, 193, 214, 386, 428, 535, 749, 772, 965, 1070, 1351, 1498, 1930, 2140, 2702, 2996, 3745, 3860, 5404, 6755, 7490, 13510, 14980, 20651, 27020, 41302, 82604, 103255, 144557, 206510, 289114, 413020, 578228, 722785, 1445570, 2891140]

約数ペア:

[(1, 2891140), (2, 1445570), (4, 722785), (5, 578228), (7, 413020), (10, 289114), (14, 206510), (20, 144557), (28, 103255), (35, 82604), (70, 41302), (107, 27020), (140, 20651), (193, 14980), (214, 13510), (386, 7490), (428, 6755), (535, 5404), (749, 3860), (772, 3745), (965, 2996), (1070, 2702), (1351, 2140), (1498, 1930)]