28968520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{337}}^1$

素因数の和:662

約数の個数: 64

約数和(自身を含む): 74954880

約数和(自身を除く): 45986360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 307, 337, 614, 674, 1228, 1348, 1535, 1685, 2149, 2359, 2456, 2696, 3070, 3370, 4298, 4718, 6140, 6740, 8596, 9436, 10745, 11795, 12280, 13480, 17192, 18872, 21490, 23590, 42980, 47180, 85960, 94360, 103459, 206918, 413836, 517295, 724213, 827672, 1034590, 1448426, 2069180, 2896852, 3621065, 4138360, 5793704, 7242130, 14484260, 28968520]

約数ペア:

[(1, 28968520), (2, 14484260), (4, 7242130), (5, 5793704), (7, 4138360), (8, 3621065), (10, 2896852), (14, 2069180), (20, 1448426), (28, 1034590), (35, 827672), (40, 724213), (56, 517295), (70, 413836), (140, 206918), (280, 103459), (307, 94360), (337, 85960), (614, 47180), (674, 42980), (1228, 23590), (1348, 21490), (1535, 18872), (1685, 17192), (2149, 13480), (2359, 12280), (2456, 11795), (2696, 10745), (3070, 9436), (3370, 8596), (4298, 6740), (4718, 6140)]