216955900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{309937}}^1$

素因数の和:309958

約数の個数: 36

約数和(自身を含む): 538052368

約数和(自身を除く): 321096468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 309937, 619874, 1239748, 1549685, 2169559, 3099370, 4339118, 6198740, 7748425, 8678236, 10847795, 15496850, 21695590, 30993700, 43391180, 54238975, 108477950, 216955900]

約数ペア:

[(1, 216955900), (2, 108477950), (4, 54238975), (5, 43391180), (7, 30993700), (10, 21695590), (14, 15496850), (20, 10847795), (25, 8678236), (28, 7748425), (35, 6198740), (50, 4339118), (70, 3099370), (100, 2169559), (140, 1549685), (175, 1239748), (350, 619874), (700, 309937)]