2921780

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1051}}^1$

素因数の和:1199

約数の個数: 24

約数和(自身を含む): 6185760

約数和(自身を除く): 3263980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1051, 1390, 2102, 2780, 4204, 5255, 10510, 21020, 146089, 292178, 584356, 730445, 1460890, 2921780]

約数ペア:

[(1, 2921780), (2, 1460890), (4, 730445), (5, 584356), (10, 292178), (20, 146089), (139, 21020), (278, 10510), (556, 5255), (695, 4204), (1051, 2780), (1390, 2102)]