199437980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1424557}}^1$

素因数の和:1424573

約数の個数: 24

約数和(自身を含む): 478651488

約数和(自身を除く): 279213508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1424557, 2849114, 5698228, 7122785, 9971899, 14245570, 19943798, 28491140, 39887596, 49859495, 99718990, 199437980]

約数ペア:

[(1, 199437980), (2, 99718990), (4, 49859495), (5, 39887596), (7, 28491140), (10, 19943798), (14, 14245570), (20, 9971899), (28, 7122785), (35, 5698228), (70, 2849114), (140, 1424557)]