1261497728

素因数分解:

$2^7\times {\mathrm{9855451}}^1$

素因数の和:9855465

約数の個数: 16

約数和(自身を含む): 2513140260

約数和(自身を除く): 1251642532

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 9855451, 19710902, 39421804, 78843608, 157687216, 315374432, 630748864, 1261497728]

約数ペア:

[(1, 1261497728), (2, 630748864), (4, 315374432), (8, 157687216), (16, 78843608), (32, 39421804), (64, 19710902), (128, 9855451)]