215687080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{770311}}^1$

素因数の和:770329

約数の個数: 32

約数和(自身を含む): 554624640

約数和(自身を除く): 338937560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 770311, 1540622, 3081244, 3851555, 5392177, 6162488, 7703110, 10784354, 15406220, 21568708, 26960885, 30812440, 43137416, 53921770, 107843540, 215687080]

約数ペア:

[(1, 215687080), (2, 107843540), (4, 53921770), (5, 43137416), (7, 30812440), (8, 26960885), (10, 21568708), (14, 15406220), (20, 10784354), (28, 7703110), (35, 6162488), (40, 5392177), (56, 3851555), (70, 3081244), (140, 1540622), (280, 770311)]