20565950

素因数分解:

$2^1\times 5^2\times {\mathrm{239}}^1\times {\mathrm{1721}}^1$

素因数の和:1972

約数の個数: 24

約数和(自身を含む): 38435040

約数和(自身を除く): 17869090

約数列:

[1, 2, 5, 10, 25, 50, 239, 478, 1195, 1721, 2390, 3442, 5975, 8605, 11950, 17210, 43025, 86050, 411319, 822638, 2056595, 4113190, 10282975, 20565950]

約数ペア:

[(1, 20565950), (2, 10282975), (5, 4113190), (10, 2056595), (25, 822638), (50, 411319), (239, 86050), (478, 43025), (1195, 17210), (1721, 11950), (2390, 8605), (3442, 5975)]