136728920

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1$

素因数の和:492

約数の個数: 64

約数和(自身を含む): 314280000

約数和(自身を除く): 177551080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 193, 199, 356, 386, 398, 445, 712, 772, 796, 890, 965, 995, 1544, 1592, 1780, 1930, 1990, 3560, 3860, 3980, 7720, 7960, 17177, 17711, 34354, 35422, 38407, 68708, 70844, 76814, 85885, 88555, 137416, 141688, 153628, 171770, 177110, 192035, 307256, 343540, 354220, 384070, 687080, 708440, 768140, 1536280, 3418223, 6836446, 13672892, 17091115, 27345784, 34182230, 68364460, 136728920]

約数ペア:

[(1, 136728920), (2, 68364460), (4, 34182230), (5, 27345784), (8, 17091115), (10, 13672892), (20, 6836446), (40, 3418223), (89, 1536280), (178, 768140), (193, 708440), (199, 687080), (356, 384070), (386, 354220), (398, 343540), (445, 307256), (712, 192035), (772, 177110), (796, 171770), (890, 153628), (965, 141688), (995, 137416), (1544, 88555), (1592, 85885), (1780, 76814), (1930, 70844), (1990, 68708), (3560, 38407), (3860, 35422), (3980, 34354), (7720, 17711), (7960, 17177)]