20189749688

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{81410281}}^1$

素因数の和:81410318

約数の個数: 16

約数和(自身を含む): 39076935360

約数和(自身を除く): 18887185672

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 81410281, 162820562, 325641124, 651282248, 2523718711, 5047437422, 10094874844, 20189749688]

約数ペア:

[(1, 20189749688), (2, 10094874844), (4, 5047437422), (8, 2523718711), (31, 651282248), (62, 325641124), (124, 162820562), (248, 81410281)]