12881456

素因数分解:

$2^4\times 7^1\times {\mathrm{115013}}^1$

素因数の和:115028

約数の個数: 20

約数和(自身を含む): 28523472

約数和(自身を除く): 15642016

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 115013, 230026, 460052, 805091, 920104, 1610182, 1840208, 3220364, 6440728, 12881456]

約数ペア:

[(1, 12881456), (2, 6440728), (4, 3220364), (7, 1840208), (8, 1610182), (14, 920104), (16, 805091), (28, 460052), (56, 230026), (112, 115013)]