19971960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1117}}^1$

素因数の和:1280

約数の個数: 64

約数和(自身を含む): 60372000

約数和(自身を除く): 40400040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 149, 298, 447, 596, 745, 894, 1117, 1192, 1490, 1788, 2234, 2235, 2980, 3351, 3576, 4468, 4470, 5585, 5960, 6702, 8936, 8940, 11170, 13404, 16755, 17880, 22340, 26808, 33510, 44680, 67020, 134040, 166433, 332866, 499299, 665732, 832165, 998598, 1331464, 1664330, 1997196, 2496495, 3328660, 3994392, 4992990, 6657320, 9985980, 19971960]

約数ペア:

[(1, 19971960), (2, 9985980), (3, 6657320), (4, 4992990), (5, 3994392), (6, 3328660), (8, 2496495), (10, 1997196), (12, 1664330), (15, 1331464), (20, 998598), (24, 832165), (30, 665732), (40, 499299), (60, 332866), (120, 166433), (149, 134040), (298, 67020), (447, 44680), (596, 33510), (745, 26808), (894, 22340), (1117, 17880), (1192, 16755), (1490, 13404), (1788, 11170), (2234, 8940), (2235, 8936), (2980, 6702), (3351, 5960), (3576, 5585), (4468, 4470)]