25881466

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{197}}^1$

素因数の和:406

約数の個数: 32

約数和(自身を含む): 43642368

約数和(自身を除く): 17760902

約数列:

[1, 2, 13, 26, 31, 62, 163, 197, 326, 394, 403, 806, 2119, 2561, 4238, 5053, 5122, 6107, 10106, 12214, 32111, 64222, 65689, 79391, 131378, 158782, 417443, 834886, 995441, 1990882, 12940733, 25881466]

約数ペア:

[(1, 25881466), (2, 12940733), (13, 1990882), (26, 995441), (31, 834886), (62, 417443), (163, 158782), (197, 131378), (326, 79391), (394, 65689), (403, 64222), (806, 32111), (2119, 12214), (2561, 10106), (4238, 6107), (5053, 5122)]