12321820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{311}}^1$

素因数の和:610

約数の個数: 48

約数和(自身を含む): 29772288

約数和(自身を除く): 17450468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 283, 311, 566, 622, 1132, 1244, 1415, 1555, 1981, 2177, 2830, 3110, 3962, 4354, 5660, 6220, 7924, 8708, 9905, 10885, 19810, 21770, 39620, 43540, 88013, 176026, 352052, 440065, 616091, 880130, 1232182, 1760260, 2464364, 3080455, 6160910, 12321820]

約数ペア:

[(1, 12321820), (2, 6160910), (4, 3080455), (5, 2464364), (7, 1760260), (10, 1232182), (14, 880130), (20, 616091), (28, 440065), (35, 352052), (70, 176026), (140, 88013), (283, 43540), (311, 39620), (566, 21770), (622, 19810), (1132, 10885), (1244, 9905), (1415, 8708), (1555, 7924), (1981, 6220), (2177, 5660), (2830, 4354), (3110, 3962)]