2781488

素因数分解:

$2^4\times {\mathrm{263}}^1\times {\mathrm{661}}^1$

素因数の和:932

約数の個数: 20

約数和(自身を含む): 5417808

約数和(自身を除く): 2636320

約数列:

[1, 2, 4, 8, 16, 263, 526, 661, 1052, 1322, 2104, 2644, 4208, 5288, 10576, 173843, 347686, 695372, 1390744, 2781488]

約数ペア:

[(1, 2781488), (2, 1390744), (4, 695372), (8, 347686), (16, 173843), (263, 10576), (526, 5288), (661, 4208), (1052, 2644), (1322, 2104)]