82740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{197}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 266112

約数和(自身を除く): 183372

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, 197, 210, 394, 420, 591, 788, 985, 1182, 1379, 1970, 2364, 2758, 2955, 3940, 4137, 5516, 5910, 6895, 8274, 11820, 13790, 16548, 20685, 27580, 41370, 82740]

約数ペア:

[(1, 82740), (2, 41370), (3, 27580), (4, 20685), (5, 16548), (6, 13790), (7, 11820), (10, 8274), (12, 6895), (14, 5910), (15, 5516), (20, 4137), (21, 3940), (28, 2955), (30, 2758), (35, 2364), (42, 1970), (60, 1379), (70, 1182), (84, 985), (105, 788), (140, 591), (197, 420), (210, 394)]