30679280

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1987}}^1$

素因数の和:2193

約数の個数: 40

約数和(自身を含む): 71734992

約数和(自身を除く): 41055712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1544, 1930, 1987, 3088, 3860, 3974, 7720, 7948, 9935, 15440, 15896, 19870, 31792, 39740, 79480, 158960, 383491, 766982, 1533964, 1917455, 3067928, 3834910, 6135856, 7669820, 15339640, 30679280]

約数ペア:

[(1, 30679280), (2, 15339640), (4, 7669820), (5, 6135856), (8, 3834910), (10, 3067928), (16, 1917455), (20, 1533964), (40, 766982), (80, 383491), (193, 158960), (386, 79480), (772, 39740), (965, 31792), (1544, 19870), (1930, 15896), (1987, 15440), (3088, 9935), (3860, 7948), (3974, 7720)]