20199460

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{9439}}^1$

素因数の和:9555

約数の個数: 24

約数和(自身を含む): 42819840

約数和(自身を除く): 22620380

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 9439, 18878, 37756, 47195, 94390, 188780, 1009973, 2019946, 4039892, 5049865, 10099730, 20199460]

約数ペア:

[(1, 20199460), (2, 10099730), (4, 5049865), (5, 4039892), (10, 2019946), (20, 1009973), (107, 188780), (214, 94390), (428, 47195), (535, 37756), (1070, 18878), (2140, 9439)]