399990338

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{461}}^1\times {\mathrm{39439}}^1$

素因数の和:39913

約数の個数: 16

約数和(自身を含む): 655966080

約数和(自身を除く): 255975742

約数列:

[1, 2, 11, 22, 461, 922, 5071, 10142, 39439, 78878, 433829, 867658, 18181379, 36362758, 199995169, 399990338]

約数ペア:

[(1, 399990338), (2, 199995169), (11, 36362758), (22, 18181379), (461, 867658), (922, 433829), (5071, 78878), (10142, 39439)]