30741520

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1931}}^1$

素因数の和:2143

約数の個数: 40

約数和(自身を含む): 71870400

約数和(自身を除く): 41128880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1931, 1990, 3184, 3862, 3980, 7724, 7960, 9655, 15448, 15920, 19310, 30896, 38620, 77240, 154480, 384269, 768538, 1537076, 1921345, 3074152, 3842690, 6148304, 7685380, 15370760, 30741520]

約数ペア:

[(1, 30741520), (2, 15370760), (4, 7685380), (5, 6148304), (8, 3842690), (10, 3074152), (16, 1921345), (20, 1537076), (40, 768538), (80, 384269), (199, 154480), (398, 77240), (796, 38620), (995, 30896), (1592, 19310), (1931, 15920), (1990, 15448), (3184, 9655), (3862, 7960), (3980, 7724)]