12448840

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2239}}^1$

素因数の和:2389

約数の個数: 32

約数和(自身を含む): 28224000

約数和(自身を除く): 15775160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2239, 2780, 4478, 5560, 8956, 11195, 17912, 22390, 44780, 89560, 311221, 622442, 1244884, 1556105, 2489768, 3112210, 6224420, 12448840]

約数ペア:

[(1, 12448840), (2, 6224420), (4, 3112210), (5, 2489768), (8, 1556105), (10, 1244884), (20, 622442), (40, 311221), (139, 89560), (278, 44780), (556, 22390), (695, 17912), (1112, 11195), (1390, 8956), (2239, 5560), (2780, 4478)]