54179920

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1741}}^1$

素因数の和:2143

約数の個数: 40

約数和(自身を含む): 126364680

約数和(自身を除く): 72184760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 1556, 1741, 1945, 3112, 3482, 3890, 6224, 6964, 7780, 8705, 13928, 15560, 17410, 27856, 31120, 34820, 69640, 139280, 677249, 1354498, 2708996, 3386245, 5417992, 6772490, 10835984, 13544980, 27089960, 54179920]

約数ペア:

[(1, 54179920), (2, 27089960), (4, 13544980), (5, 10835984), (8, 6772490), (10, 5417992), (16, 3386245), (20, 2708996), (40, 1354498), (80, 677249), (389, 139280), (778, 69640), (1556, 34820), (1741, 31120), (1945, 27856), (3112, 17410), (3482, 15560), (3890, 13928), (6224, 8705), (6964, 7780)]