913449620

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{328579}}^1$

素因数の和:328727

約数の個数: 24

約数和(自身を含む): 1932050400

約数和(自身を除く): 1018600780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 328579, 657158, 1314316, 1642895, 3285790, 6571580, 45672481, 91344962, 182689924, 228362405, 456724810, 913449620]

約数ペア:

[(1, 913449620), (2, 456724810), (4, 228362405), (5, 182689924), (10, 91344962), (20, 45672481), (139, 6571580), (278, 3285790), (556, 1642895), (695, 1314316), (1390, 657158), (2780, 328579)]