27782020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{28349}}^1$

素因数の和:28372

約数の個数: 36

約数和(自身を含む): 67869900

約数和(自身を除く): 40087880

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 28349, 56698, 113396, 141745, 198443, 283490, 396886, 566980, 793772, 992215, 1389101, 1984430, 2778202, 3968860, 5556404, 6945505, 13891010, 27782020]

約数ペア:

[(1, 27782020), (2, 13891010), (4, 6945505), (5, 5556404), (7, 3968860), (10, 2778202), (14, 1984430), (20, 1389101), (28, 992215), (35, 793772), (49, 566980), (70, 396886), (98, 283490), (140, 198443), (196, 141745), (245, 113396), (490, 56698), (980, 28349)]