7920920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{28289}}^1$

素因数の和:28307

約数の個数: 32

約数和(自身を含む): 20368800

約数和(自身を除く): 12447880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 28289, 56578, 113156, 141445, 198023, 226312, 282890, 396046, 565780, 792092, 990115, 1131560, 1584184, 1980230, 3960460, 7920920]

約数ペア:

[(1, 7920920), (2, 3960460), (4, 1980230), (5, 1584184), (7, 1131560), (8, 990115), (10, 792092), (14, 565780), (20, 396046), (28, 282890), (35, 226312), (40, 198023), (56, 141445), (70, 113156), (140, 56578), (280, 28289)]