53207420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{977}}^1$

素因数の和:1382

約数の個数: 48

約数和(自身を含む): 128157120

約数和(自身を除く): 74949700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 389, 778, 977, 1556, 1945, 1954, 2723, 3890, 3908, 4885, 5446, 6839, 7780, 9770, 10892, 13615, 13678, 19540, 27230, 27356, 34195, 54460, 68390, 136780, 380053, 760106, 1520212, 1900265, 2660371, 3800530, 5320742, 7601060, 10641484, 13301855, 26603710, 53207420]

約数ペア:

[(1, 53207420), (2, 26603710), (4, 13301855), (5, 10641484), (7, 7601060), (10, 5320742), (14, 3800530), (20, 2660371), (28, 1900265), (35, 1520212), (70, 760106), (140, 380053), (389, 136780), (778, 68390), (977, 54460), (1556, 34195), (1945, 27356), (1954, 27230), (2723, 19540), (3890, 13678), (3908, 13615), (4885, 10892), (5446, 9770), (6839, 7780)]