80220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{191}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 258048

約数和(自身を除く): 177828

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, 191, 210, 382, 420, 573, 764, 955, 1146, 1337, 1910, 2292, 2674, 2865, 3820, 4011, 5348, 5730, 6685, 8022, 11460, 13370, 16044, 20055, 26740, 40110, 80220]

約数ペア:

[(1, 80220), (2, 40110), (3, 26740), (4, 20055), (5, 16044), (6, 13370), (7, 11460), (10, 8022), (12, 6685), (14, 5730), (15, 5348), (20, 4011), (21, 3820), (28, 2865), (30, 2674), (35, 2292), (42, 1910), (60, 1337), (70, 1146), (84, 955), (105, 764), (140, 573), (191, 420), (210, 382)]