55308020

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{7109}}^1$

素因数の和:7507

約数の個数: 24

約数和(自身を含む): 116461800

約数和(自身を除く): 61153780

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7109, 7780, 14218, 28436, 35545, 71090, 142180, 2765401, 5530802, 11061604, 13827005, 27654010, 55308020]

約数ペア:

[(1, 55308020), (2, 27654010), (4, 13827005), (5, 11061604), (10, 5530802), (20, 2765401), (389, 142180), (778, 71090), (1556, 35545), (1945, 28436), (3890, 14218), (7109, 7780)]