20784220

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{6007}}^1$

素因数の和:6189

約数の個数: 24

約数和(自身を含む): 43906464

約数和(自身を除く): 23122244

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 6007, 12014, 24028, 30035, 60070, 120140, 1039211, 2078422, 4156844, 5196055, 10392110, 20784220]

約数ペア:

[(1, 20784220), (2, 10392110), (4, 5196055), (5, 4156844), (10, 2078422), (20, 1039211), (173, 120140), (346, 60070), (692, 30035), (865, 24028), (1730, 12014), (3460, 6007)]