201587085

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{639959}}^1$

素因数の和:639977

約数の個数: 24

約数和(自身を含む): 399335040

約数和(自身を除く): 197747955

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 639959, 1919877, 3199795, 4479713, 5759631, 9599385, 13439139, 22398565, 28798155, 40317417, 67195695, 201587085]

約数ペア:

[(1, 201587085), (3, 67195695), (5, 40317417), (7, 28798155), (9, 22398565), (15, 13439139), (21, 9599385), (35, 5759631), (45, 4479713), (63, 3199795), (105, 1919877), (315, 639959)]