39989740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{285641}}^1$

素因数の和:285657

約数の個数: 24

約数和(自身を含む): 95975712

約数和(自身を除く): 55985972

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 285641, 571282, 1142564, 1428205, 1999487, 2856410, 3998974, 5712820, 7997948, 9997435, 19994870, 39989740]

約数ペア:

[(1, 39989740), (2, 19994870), (4, 9997435), (5, 7997948), (7, 5712820), (10, 3998974), (14, 2856410), (20, 1999487), (28, 1428205), (35, 1142564), (70, 571282), (140, 285641)]