28297540

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{7817}}^1$

素因数の和:8007

約数の個数: 24

約数和(自身を含む): 59760792

約数和(自身を除く): 31463252

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 7817, 15634, 31268, 39085, 78170, 156340, 1414877, 2829754, 5659508, 7074385, 14148770, 28297540]

約数ペア:

[(1, 28297540), (2, 14148770), (4, 7074385), (5, 5659508), (10, 2829754), (20, 1414877), (181, 156340), (362, 78170), (724, 39085), (905, 31268), (1810, 15634), (3620, 7817)]