207829780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{146359}}^1$

素因数の和:146439

約数の個数: 24

約数和(自身を含む): 442592640

約数和(自身を除く): 234762860

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 146359, 292718, 585436, 731795, 1463590, 2927180, 10391489, 20782978, 41565956, 51957445, 103914890, 207829780]

約数ペア:

[(1, 207829780), (2, 103914890), (4, 51957445), (5, 41565956), (10, 20782978), (20, 10391489), (71, 2927180), (142, 1463590), (284, 731795), (355, 585436), (710, 292718), (1420, 146359)]