28267120

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{7211}}^1$

素因数の和:7238

約数の個数: 60

約数和(自身を含む): 76461624

約数和(自身を除く): 48194504

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 7211, 14422, 28844, 36055, 50477, 57688, 72110, 100954, 115376, 144220, 201908, 252385, 288440, 353339, 403816, 504770, 576880, 706678, 807632, 1009540, 1413356, 1766695, 2019080, 2826712, 3533390, 4038160, 5653424, 7066780, 14133560, 28267120]

約数ペア:

[(1, 28267120), (2, 14133560), (4, 7066780), (5, 5653424), (7, 4038160), (8, 3533390), (10, 2826712), (14, 2019080), (16, 1766695), (20, 1413356), (28, 1009540), (35, 807632), (40, 706678), (49, 576880), (56, 504770), (70, 403816), (80, 353339), (98, 288440), (112, 252385), (140, 201908), (196, 144220), (245, 115376), (280, 100954), (392, 72110), (490, 57688), (560, 50477), (784, 36055), (980, 28844), (1960, 14422), (3920, 7211)]