261887004

素因数分解:

$2^2\times 3^2\times {\mathrm{7274639}}^1$

素因数の和:7274649

約数の個数: 18

約数和(自身を含む): 661992240

約数和(自身を除く): 400105236

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 7274639, 14549278, 21823917, 29098556, 43647834, 65471751, 87295668, 130943502, 261887004]

約数ペア:

[(1, 261887004), (2, 130943502), (3, 87295668), (4, 65471751), (6, 43647834), (9, 29098556), (12, 21823917), (18, 14549278), (36, 7274639)]