157445720

素因数分解:

$2^3\times 5^1\times {\mathrm{863}}^1\times {\mathrm{4561}}^1$

素因数の和:5435

約数の個数: 32

約数和(自身を含む): 354741120

約数和(自身を除く): 197295400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 863, 1726, 3452, 4315, 4561, 6904, 8630, 9122, 17260, 18244, 22805, 34520, 36488, 45610, 91220, 182440, 3936143, 7872286, 15744572, 19680715, 31489144, 39361430, 78722860, 157445720]

約数ペア:

[(1, 157445720), (2, 78722860), (4, 39361430), (5, 31489144), (8, 19680715), (10, 15744572), (20, 7872286), (40, 3936143), (863, 182440), (1726, 91220), (3452, 45610), (4315, 36488), (4561, 34520), (6904, 22805), (8630, 18244), (9122, 17260)]