2054420

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{739}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 4351200

約数和(自身を除く): 2296780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 739, 1390, 1478, 2780, 2956, 3695, 7390, 14780, 102721, 205442, 410884, 513605, 1027210, 2054420]

約数ペア:

[(1, 2054420), (2, 1027210), (4, 513605), (5, 410884), (10, 205442), (20, 102721), (139, 14780), (278, 7390), (556, 3695), (695, 2956), (739, 2780), (1390, 1478)]