20687670

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{397}}^1$

素因数の和:606

約数の個数: 64

約数和(自身を含む): 55592640

約数和(自身を除く): 34904970

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 193, 270, 386, 397, 579, 794, 965, 1158, 1191, 1737, 1930, 1985, 2382, 2895, 3474, 3573, 3970, 5211, 5790, 5955, 7146, 8685, 10422, 10719, 11910, 17370, 17865, 21438, 26055, 35730, 52110, 53595, 76621, 107190, 153242, 229863, 383105, 459726, 689589, 766210, 1149315, 1379178, 2068767, 2298630, 3447945, 4137534, 6895890, 10343835, 20687670]

約数ペア:

[(1, 20687670), (2, 10343835), (3, 6895890), (5, 4137534), (6, 3447945), (9, 2298630), (10, 2068767), (15, 1379178), (18, 1149315), (27, 766210), (30, 689589), (45, 459726), (54, 383105), (90, 229863), (135, 153242), (193, 107190), (270, 76621), (386, 53595), (397, 52110), (579, 35730), (794, 26055), (965, 21438), (1158, 17865), (1191, 17370), (1737, 11910), (1930, 10719), (1985, 10422), (2382, 8685), (2895, 7146), (3474, 5955), (3573, 5790), (3970, 5211)]