640546874

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{3701}}^1\times {\mathrm{7867}}^1$

素因数の和:11581

約数の個数: 16

約数和(自身を含む): 1048584096

約数和(自身を除く): 408037222

約数列:

[1, 2, 11, 22, 3701, 7402, 7867, 15734, 40711, 81422, 86537, 173074, 29115767, 58231534, 320273437, 640546874]

約数ペア:

[(1, 640546874), (2, 320273437), (11, 58231534), (22, 29115767), (3701, 173074), (7402, 86537), (7867, 81422), (15734, 40711)]