80165820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{190871}}^1$

素因数の和:190890

約数の個数: 48

約数和(自身を含む): 256531968

約数和(自身を除く): 176366148

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 190871, 381742, 572613, 763484, 954355, 1145226, 1336097, 1908710, 2290452, 2672194, 2863065, 3817420, 4008291, 5344388, 5726130, 6680485, 8016582, 11452260, 13360970, 16033164, 20041455, 26721940, 40082910, 80165820]

約数ペア:

[(1, 80165820), (2, 40082910), (3, 26721940), (4, 20041455), (5, 16033164), (6, 13360970), (7, 11452260), (10, 8016582), (12, 6680485), (14, 5726130), (15, 5344388), (20, 4008291), (21, 3817420), (28, 2863065), (30, 2672194), (35, 2290452), (42, 1908710), (60, 1336097), (70, 1145226), (84, 954355), (105, 763484), (140, 572613), (210, 381742), (420, 190871)]