17981640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{251}}^1$

素因数の和:467

約数の個数: 96

約数和(自身を含む): 58968000

約数和(自身を除く): 40986360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 199, 251, 360, 398, 502, 597, 753, 796, 995, 1004, 1194, 1255, 1506, 1592, 1791, 1990, 2008, 2259, 2388, 2510, 2985, 3012, 3582, 3765, 3980, 4518, 4776, 5020, 5970, 6024, 7164, 7530, 7960, 8955, 9036, 10040, 11295, 11940, 14328, 15060, 17910, 18072, 22590, 23880, 30120, 35820, 45180, 49949, 71640, 90360, 99898, 149847, 199796, 249745, 299694, 399592, 449541, 499490, 599388, 749235, 899082, 998980, 1198776, 1498470, 1798164, 1997960, 2247705, 2996940, 3596328, 4495410, 5993880, 8990820, 17981640]

約数ペア:

[(1, 17981640), (2, 8990820), (3, 5993880), (4, 4495410), (5, 3596328), (6, 2996940), (8, 2247705), (9, 1997960), (10, 1798164), (12, 1498470), (15, 1198776), (18, 998980), (20, 899082), (24, 749235), (30, 599388), (36, 499490), (40, 449541), (45, 399592), (60, 299694), (72, 249745), (90, 199796), (120, 149847), (180, 99898), (199, 90360), (251, 71640), (360, 49949), (398, 45180), (502, 35820), (597, 30120), (753, 23880), (796, 22590), (995, 18072), (1004, 17910), (1194, 15060), (1255, 14328), (1506, 11940), (1592, 11295), (1791, 10040), (1990, 9036), (2008, 8955), (2259, 7960), (2388, 7530), (2510, 7164), (2985, 6024), (3012, 5970), (3582, 5020), (3765, 4776), (3980, 4518)]