81295856

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{32363}}^1$

素因数の和:32528

約数の個数: 20

約数和(自身を含む): 158518872

約数和(自身を除く): 77223016

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 32363, 64726, 129452, 258904, 517808, 5080991, 10161982, 20323964, 40647928, 81295856]

約数ペア:

[(1, 81295856), (2, 40647928), (4, 20323964), (8, 10161982), (16, 5080991), (157, 517808), (314, 258904), (628, 129452), (1256, 64726), (2512, 32363)]