128292920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{458189}}^1$

素因数の和:458207

約数の個数: 32

約数和(自身を含む): 329896800

約数和(自身を除く): 201603880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 458189, 916378, 1832756, 2290945, 3207323, 3665512, 4581890, 6414646, 9163780, 12829292, 16036615, 18327560, 25658584, 32073230, 64146460, 128292920]

約数ペア:

[(1, 128292920), (2, 64146460), (4, 32073230), (5, 25658584), (7, 18327560), (8, 16036615), (10, 12829292), (14, 9163780), (20, 6414646), (28, 4581890), (35, 3665512), (40, 3207323), (56, 2290945), (70, 1832756), (140, 916378), (280, 458189)]