138091660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{986369}}^1$

素因数の和:986385

約数の個数: 24

約数和(自身を含む): 331420320

約数和(自身を除く): 193328660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 986369, 1972738, 3945476, 4931845, 6904583, 9863690, 13809166, 19727380, 27618332, 34522915, 69045830, 138091660]

約数ペア:

[(1, 138091660), (2, 69045830), (4, 34522915), (5, 27618332), (7, 19727380), (10, 13809166), (14, 9863690), (20, 6904583), (28, 4931845), (35, 3945476), (70, 1972738), (140, 986369)]