297719920

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{18701}}^1$

素因数の和:18913

約数の個数: 40

約数和(自身を含む): 695714400

約数和(自身を除く): 397994480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1990, 3184, 3980, 7960, 15920, 18701, 37402, 74804, 93505, 149608, 187010, 299216, 374020, 748040, 1496080, 3721499, 7442998, 14885996, 18607495, 29771992, 37214990, 59543984, 74429980, 148859960, 297719920]

約数ペア:

[(1, 297719920), (2, 148859960), (4, 74429980), (5, 59543984), (8, 37214990), (10, 29771992), (16, 18607495), (20, 14885996), (40, 7442998), (80, 3721499), (199, 1496080), (398, 748040), (796, 374020), (995, 299216), (1592, 187010), (1990, 149608), (3184, 93505), (3980, 74804), (7960, 37402), (15920, 18701)]