28668220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{1061}}^1$

素因数の和:1270

約数の個数: 48

約数和(自身を含む): 69225408

約数和(自身を除く): 40557188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 193, 386, 772, 965, 1061, 1351, 1930, 2122, 2702, 3860, 4244, 5305, 5404, 6755, 7427, 10610, 13510, 14854, 21220, 27020, 29708, 37135, 74270, 148540, 204773, 409546, 819092, 1023865, 1433411, 2047730, 2866822, 4095460, 5733644, 7167055, 14334110, 28668220]

約数ペア:

[(1, 28668220), (2, 14334110), (4, 7167055), (5, 5733644), (7, 4095460), (10, 2866822), (14, 2047730), (20, 1433411), (28, 1023865), (35, 819092), (70, 409546), (140, 204773), (193, 148540), (386, 74270), (772, 37135), (965, 29708), (1061, 27020), (1351, 21220), (1930, 14854), (2122, 13510), (2702, 10610), (3860, 7427), (4244, 6755), (5305, 5404)]