20106220

素因数分解:

$2^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{2239}}^1$

素因数の和:2697

約数の個数: 24

約数和(自身を含む): 42336000

約数和(自身を除く): 22229780

約数列:

[1, 2, 4, 5, 10, 20, 449, 898, 1796, 2239, 2245, 4478, 4490, 8956, 8980, 11195, 22390, 44780, 1005311, 2010622, 4021244, 5026555, 10053110, 20106220]

約数ペア:

[(1, 20106220), (2, 10053110), (4, 5026555), (5, 4021244), (10, 2010622), (20, 1005311), (449, 44780), (898, 22390), (1796, 11195), (2239, 8980), (2245, 8956), (4478, 4490)]