247479890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{505061}}^1$

素因数の和:505082

約数の個数: 24

約数和(自身を含む): 518193612

約数和(自身を除く): 270713722

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 505061, 1010122, 2525305, 3535427, 5050610, 7070854, 17677135, 24747989, 35354270, 49495978, 123739945, 247479890]

約数ペア:

[(1, 247479890), (2, 123739945), (5, 49495978), (7, 35354270), (10, 24747989), (14, 17677135), (35, 7070854), (49, 5050610), (70, 3535427), (98, 2525305), (245, 1010122), (490, 505061)]