81609502

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{15773}}^1$

素因数の和:15987

約数の個数: 16

約数和(自身を含む): 132501600

約数和(自身を除く): 50892098

約数列:

[1, 2, 13, 26, 199, 398, 2587, 5174, 15773, 31546, 205049, 410098, 3138827, 6277654, 40804751, 81609502]

約数ペア:

[(1, 81609502), (2, 40804751), (13, 6277654), (26, 3138827), (199, 410098), (398, 205049), (2587, 31546), (5174, 15773)]