28397530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{405679}}^1$

素因数の和:405693

約数の個数: 16

約数和(自身を含む): 58417920

約数和(自身を除く): 30020390

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 405679, 811358, 2028395, 2839753, 4056790, 5679506, 14198765, 28397530]

約数ペア:

[(1, 28397530), (2, 14198765), (5, 5679506), (7, 4056790), (10, 2839753), (14, 2028395), (35, 811358), (70, 405679)]