19782140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{141301}}^1$

素因数の和:141317

約数の個数: 24

約数和(自身を含む): 47477472

約数和(自身を除く): 27695332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 141301, 282602, 565204, 706505, 989107, 1413010, 1978214, 2826020, 3956428, 4945535, 9891070, 19782140]

約数ペア:

[(1, 19782140), (2, 9891070), (4, 4945535), (5, 3956428), (7, 2826020), (10, 1978214), (14, 1413010), (20, 989107), (28, 706505), (35, 565204), (70, 282602), (140, 141301)]