11987990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{4177}}^1$

素因数の和:4232

約数の個数: 32

約数和(自身を含む): 25268544

約数和(自身を除く): 13280554

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 82, 205, 287, 410, 574, 1435, 2870, 4177, 8354, 20885, 29239, 41770, 58478, 146195, 171257, 292390, 342514, 856285, 1198799, 1712570, 2397598, 5993995, 11987990]

約数ペア:

[(1, 11987990), (2, 5993995), (5, 2397598), (7, 1712570), (10, 1198799), (14, 856285), (35, 342514), (41, 292390), (70, 171257), (82, 146195), (205, 58478), (287, 41770), (410, 29239), (574, 20885), (1435, 8354), (2870, 4177)]