28496720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{337}}^1$

素因数の和:508

約数の個数: 80

約数和(自身を含む): 76447488

約数和(自身を除く): 47950768

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 151, 280, 302, 337, 560, 604, 674, 755, 1057, 1208, 1348, 1510, 1685, 2114, 2359, 2416, 2696, 3020, 3370, 4228, 4718, 5285, 5392, 6040, 6740, 8456, 9436, 10570, 11795, 12080, 13480, 16912, 18872, 21140, 23590, 26960, 37744, 42280, 47180, 50887, 84560, 94360, 101774, 188720, 203548, 254435, 356209, 407096, 508870, 712418, 814192, 1017740, 1424836, 1781045, 2035480, 2849672, 3562090, 4070960, 5699344, 7124180, 14248360, 28496720]

約数ペア:

[(1, 28496720), (2, 14248360), (4, 7124180), (5, 5699344), (7, 4070960), (8, 3562090), (10, 2849672), (14, 2035480), (16, 1781045), (20, 1424836), (28, 1017740), (35, 814192), (40, 712418), (56, 508870), (70, 407096), (80, 356209), (112, 254435), (140, 203548), (151, 188720), (280, 101774), (302, 94360), (337, 84560), (560, 50887), (604, 47180), (674, 42280), (755, 37744), (1057, 26960), (1208, 23590), (1348, 21140), (1510, 18872), (1685, 16912), (2114, 13480), (2359, 12080), (2416, 11795), (2696, 10570), (3020, 9436), (3370, 8456), (4228, 6740), (4718, 6040), (5285, 5392)]