81149740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{579641}}^1$

素因数の和:579657

約数の個数: 24

約数和(自身を含む): 194759712

約数和(自身を除く): 113609972

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 579641, 1159282, 2318564, 2898205, 4057487, 5796410, 8114974, 11592820, 16229948, 20287435, 40574870, 81149740]

約数ペア:

[(1, 81149740), (2, 40574870), (4, 20287435), (5, 16229948), (7, 11592820), (10, 8114974), (14, 5796410), (20, 4057487), (28, 2898205), (35, 2318564), (70, 1159282), (140, 579641)]