19354220

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{4049}}^1$

素因数の和:4297

約数の個数: 24

約数和(自身を含む): 40824000

約数和(自身を除く): 21469780

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4049, 4780, 8098, 16196, 20245, 40490, 80980, 967711, 1935422, 3870844, 4838555, 9677110, 19354220]

約数ペア:

[(1, 19354220), (2, 9677110), (4, 4838555), (5, 3870844), (10, 1935422), (20, 967711), (239, 80980), (478, 40490), (956, 20245), (1195, 16196), (2390, 8098), (4049, 4780)]