40540868

素因数分解:

$2^2\times {\mathrm{523}}^1\times {\mathrm{19379}}^1$

素因数の和:19906

約数の個数: 12

約数和(自身を含む): 71085840

約数和(自身を除く): 30544972

約数列:

[1, 2, 4, 523, 1046, 2092, 19379, 38758, 77516, 10135217, 20270434, 40540868]

約数ペア:

[(1, 40540868), (2, 20270434), (4, 10135217), (523, 77516), (1046, 38758), (2092, 19379)]