1340220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{3191}}^1$

素因数の和:3210

約数の個数: 48

約数和(自身を含む): 4290048

約数和(自身を除く): 2949828

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, 3191, 6382, 9573, 12764, 15955, 19146, 22337, 31910, 38292, 44674, 47865, 63820, 67011, 89348, 95730, 111685, 134022, 191460, 223370, 268044, 335055, 446740, 670110, 1340220]

約数ペア:

[(1, 1340220), (2, 670110), (3, 446740), (4, 335055), (5, 268044), (6, 223370), (7, 191460), (10, 134022), (12, 111685), (14, 95730), (15, 89348), (20, 67011), (21, 63820), (28, 47865), (30, 44674), (35, 38292), (42, 31910), (60, 22337), (70, 19146), (84, 15955), (105, 12764), (140, 9573), (210, 6382), (420, 3191)]