7889739560

素因数分解:

$2^3\times 5^1\times {\mathrm{997}}^1\times {\mathrm{197837}}^1$

素因数の和:198845

約数の個数: 32

約数和(自身を含む): 17769809160

約数和(自身を除く): 9880069600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 997, 1994, 3988, 4985, 7976, 9970, 19940, 39880, 197837, 395674, 791348, 989185, 1582696, 1978370, 3956740, 7913480, 197243489, 394486978, 788973956, 986217445, 1577947912, 1972434890, 3944869780, 7889739560]

約数ペア:

[(1, 7889739560), (2, 3944869780), (4, 1972434890), (5, 1577947912), (8, 986217445), (10, 788973956), (20, 394486978), (40, 197243489), (997, 7913480), (1994, 3956740), (3988, 1978370), (4985, 1582696), (7976, 989185), (9970, 791348), (19940, 395674), (39880, 197837)]