199670840

素因数分解:

$2^3\times 5^1\times {\mathrm{4991771}}^1$

素因数の和:4991782

約数の個数: 16

約数和(自身を含む): 449259480

約数和(自身を除く): 249588640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4991771, 9983542, 19967084, 24958855, 39934168, 49917710, 99835420, 199670840]

約数ペア:

[(1, 199670840), (2, 99835420), (4, 49917710), (5, 39934168), (8, 24958855), (10, 19967084), (20, 9983542), (40, 4991771)]