258892970

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{75479}}^1$

素因数の和:75507

約数の個数: 32

約数和(自身を含む): 543456000

約数和(自身を除く): 284563030

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 75479, 150958, 377395, 528353, 754790, 1056706, 2641765, 3698471, 5283530, 7396942, 18492355, 25889297, 36984710, 51778594, 129446485, 258892970]

約数ペア:

[(1, 258892970), (2, 129446485), (5, 51778594), (7, 36984710), (10, 25889297), (14, 18492355), (35, 7396942), (49, 5283530), (70, 3698471), (98, 2641765), (245, 1056706), (343, 754790), (490, 528353), (686, 377395), (1715, 150958), (3430, 75479)]