81747190

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{23833}}^1$

素因数の和:23861

約数の個数: 32

約数和(自身を含む): 171604800

約数和(自身を除く): 89857610

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 23833, 47666, 119165, 166831, 238330, 333662, 834155, 1167817, 1668310, 2335634, 5839085, 8174719, 11678170, 16349438, 40873595, 81747190]

約数ペア:

[(1, 81747190), (2, 40873595), (5, 16349438), (7, 11678170), (10, 8174719), (14, 5839085), (35, 2335634), (49, 1668310), (70, 1167817), (98, 834155), (245, 333662), (343, 238330), (490, 166831), (686, 119165), (1715, 47666), (3430, 23833)]