1290278

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{263}}^1$

素因数の和:499

約数の個数: 16

約数和(自身を含む): 2128896

約数和(自身を除く): 838618

約数列:

[1, 2, 11, 22, 223, 263, 446, 526, 2453, 2893, 4906, 5786, 58649, 117298, 645139, 1290278]

約数ペア:

[(1, 1290278), (2, 645139), (11, 117298), (22, 58649), (223, 5786), (263, 4906), (446, 2893), (526, 2453)]