128978884

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{454151}}^1$

素因数の和:454226

約数の個数: 12

約数和(自身を含む): 228892608

約数和(自身を除く): 99913724

約数列:

[1, 2, 4, 71, 142, 284, 454151, 908302, 1816604, 32244721, 64489442, 128978884]

約数ペア:

[(1, 128978884), (2, 64489442), (4, 32244721), (71, 1816604), (142, 908302), (284, 454151)]