19478270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{278261}}^1$

素因数の和:278275

約数の個数: 16

約数和(自身を含む): 40069728

約数和(自身を除く): 20591458

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 278261, 556522, 1391305, 1947827, 2782610, 3895654, 9739135, 19478270]

約数ペア:

[(1, 19478270), (2, 9739135), (5, 3895654), (7, 2782610), (10, 1947827), (14, 1391305), (35, 556522), (70, 278261)]