20798920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{27367}}^1$

素因数の和:27397

約数の個数: 32

約数和(自身を含む): 49262400

約数和(自身を除く): 28463480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 27367, 54734, 109468, 136835, 218936, 273670, 519973, 547340, 1039946, 1094680, 2079892, 2599865, 4159784, 5199730, 10399460, 20798920]

約数ペア:

[(1, 20798920), (2, 10399460), (4, 5199730), (5, 4159784), (8, 2599865), (10, 2079892), (19, 1094680), (20, 1039946), (38, 547340), (40, 519973), (76, 273670), (95, 218936), (152, 136835), (190, 109468), (380, 54734), (760, 27367)]