30771920

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1993}}^1$

素因数の和:2199

約数の個数: 40

約数和(自身を含む): 71951496

約数和(自身を除く): 41179576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1544, 1930, 1993, 3088, 3860, 3986, 7720, 7972, 9965, 15440, 15944, 19930, 31888, 39860, 79720, 159440, 384649, 769298, 1538596, 1923245, 3077192, 3846490, 6154384, 7692980, 15385960, 30771920]

約数ペア:

[(1, 30771920), (2, 15385960), (4, 7692980), (5, 6154384), (8, 3846490), (10, 3077192), (16, 1923245), (20, 1538596), (40, 769298), (80, 384649), (193, 159440), (386, 79720), (772, 39860), (965, 31888), (1544, 19930), (1930, 15944), (1993, 15440), (3088, 9965), (3860, 7972), (3986, 7720)]