1880456780

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{393401}}^1$

素因数の和:393649

約数の個数: 24

約数和(自身を含む): 3965492160

約数和(自身を除く): 2085035380

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4780, 393401, 786802, 1573604, 1967005, 3934010, 7868020, 94022839, 188045678, 376091356, 470114195, 940228390, 1880456780]

約数ペア:

[(1, 1880456780), (2, 940228390), (4, 470114195), (5, 376091356), (10, 188045678), (20, 94022839), (239, 7868020), (478, 3934010), (956, 1967005), (1195, 1573604), (2390, 786802), (4780, 393401)]