40405390

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{56909}}^1$

素因数の和:56987

約数の個数: 16

約数和(自身を含む): 73755360

約数和(自身を除く): 33349970

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 56909, 113818, 284545, 569090, 4040539, 8081078, 20202695, 40405390]

約数ペア:

[(1, 40405390), (2, 20202695), (5, 8081078), (10, 4040539), (71, 569090), (142, 284545), (355, 113818), (710, 56909)]