2180920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{7789}}^1$

素因数の和:7807

約数の個数: 32

約数和(自身を含む): 5608800

約数和(自身を除く): 3427880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 7789, 15578, 31156, 38945, 54523, 62312, 77890, 109046, 155780, 218092, 272615, 311560, 436184, 545230, 1090460, 2180920]

約数ペア:

[(1, 2180920), (2, 1090460), (4, 545230), (5, 436184), (7, 311560), (8, 272615), (10, 218092), (14, 155780), (20, 109046), (28, 77890), (35, 62312), (40, 54523), (56, 38945), (70, 31156), (140, 15578), (280, 7789)]