28525280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{25469}}^1$

素因数の和:25491

約数の個数: 48

約数和(自身を含む): 77021280

約数和(自身を除く): 48496000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 25469, 50938, 101876, 127345, 178283, 203752, 254690, 356566, 407504, 509380, 713132, 815008, 891415, 1018760, 1426264, 1782830, 2037520, 2852528, 3565660, 4075040, 5705056, 7131320, 14262640, 28525280]

約数ペア:

[(1, 28525280), (2, 14262640), (4, 7131320), (5, 5705056), (7, 4075040), (8, 3565660), (10, 2852528), (14, 2037520), (16, 1782830), (20, 1426264), (28, 1018760), (32, 891415), (35, 815008), (40, 713132), (56, 509380), (70, 407504), (80, 356566), (112, 254690), (140, 203752), (160, 178283), (224, 127345), (280, 101876), (560, 50938), (1120, 25469)]