128585828

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^2\times {\mathrm{911}}^1$

素因数の和:1064

約数の個数: 36

約数和(自身を含む): 261131136

約数和(自身を除く): 132545308

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 911, 994, 1822, 1988, 3644, 5041, 6377, 10082, 12754, 20164, 25508, 35287, 64681, 70574, 129362, 141148, 258724, 452767, 905534, 1811068, 4592351, 9184702, 18369404, 32146457, 64292914, 128585828]

約数ペア:

[(1, 128585828), (2, 64292914), (4, 32146457), (7, 18369404), (14, 9184702), (28, 4592351), (71, 1811068), (142, 905534), (284, 452767), (497, 258724), (911, 141148), (994, 129362), (1822, 70574), (1988, 64681), (3644, 35287), (5041, 25508), (6377, 20164), (10082, 12754)]