20373220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{20789}}^1$

素因数の和:20812

約数の個数: 36

約数和(自身を含む): 49771260

約数和(自身を除く): 29398040

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 20789, 41578, 83156, 103945, 145523, 207890, 291046, 415780, 582092, 727615, 1018661, 1455230, 2037322, 2910460, 4074644, 5093305, 10186610, 20373220]

約数ペア:

[(1, 20373220), (2, 10186610), (4, 5093305), (5, 4074644), (7, 2910460), (10, 2037322), (14, 1455230), (20, 1018661), (28, 727615), (35, 582092), (49, 415780), (70, 291046), (98, 207890), (140, 145523), (196, 103945), (245, 83156), (490, 41578), (980, 20789)]