30320920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{108289}}^1$

素因数の和:108307

約数の個数: 32

約数和(自身を含む): 77968800

約数和(自身を除く): 47647880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 108289, 216578, 433156, 541445, 758023, 866312, 1082890, 1516046, 2165780, 3032092, 3790115, 4331560, 6064184, 7580230, 15160460, 30320920]

約数ペア:

[(1, 30320920), (2, 15160460), (4, 7580230), (5, 6064184), (7, 4331560), (8, 3790115), (10, 3032092), (14, 2165780), (20, 1516046), (28, 1082890), (35, 866312), (40, 758023), (56, 541445), (70, 433156), (140, 216578), (280, 108289)]