64639988

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{25939}}^1$

素因数の和:26039

約数の個数: 24

約数和(自身を含む): 130737600

約数和(自身を除く): 66097612

約数列:

[1, 2, 4, 7, 14, 28, 89, 178, 356, 623, 1246, 2492, 25939, 51878, 103756, 181573, 363146, 726292, 2308571, 4617142, 9234284, 16159997, 32319994, 64639988]

約数ペア:

[(1, 64639988), (2, 32319994), (4, 16159997), (7, 9234284), (14, 4617142), (28, 2308571), (89, 726292), (178, 363146), (356, 181573), (623, 103756), (1246, 51878), (2492, 25939)]