80450020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{574643}}^1$

素因数の和:574659

約数の個数: 24

約数和(自身を含む): 193080384

約数和(自身を除く): 112630364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 574643, 1149286, 2298572, 2873215, 4022501, 5746430, 8045002, 11492860, 16090004, 20112505, 40225010, 80450020]

約数ペア:

[(1, 80450020), (2, 40225010), (4, 20112505), (5, 16090004), (7, 11492860), (10, 8045002), (14, 5746430), (20, 4022501), (28, 2873215), (35, 2298572), (70, 1149286), (140, 574643)]