20512671160

素因数分解:

$2^3\times 5^1\times {\mathrm{1511}}^1\times {\mathrm{339389}}^1$

素因数の和:340911

約数の個数: 32

約数和(自身を含む): 46184191200

約数和(自身を除く): 25671520040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1511, 3022, 6044, 7555, 12088, 15110, 30220, 60440, 339389, 678778, 1357556, 1696945, 2715112, 3393890, 6787780, 13575560, 512816779, 1025633558, 2051267116, 2564083895, 4102534232, 5128167790, 10256335580, 20512671160]

約数ペア:

[(1, 20512671160), (2, 10256335580), (4, 5128167790), (5, 4102534232), (8, 2564083895), (10, 2051267116), (20, 1025633558), (40, 512816779), (1511, 13575560), (3022, 6787780), (6044, 3393890), (7555, 2715112), (12088, 1696945), (15110, 1357556), (30220, 678778), (60440, 339389)]