30120020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{215143}}^1$

素因数の和:215159

約数の個数: 24

約数和(自身を含む): 72288384

約数和(自身を除く): 42168364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 215143, 430286, 860572, 1075715, 1506001, 2151430, 3012002, 4302860, 6024004, 7530005, 15060010, 30120020]

約数ペア:

[(1, 30120020), (2, 15060010), (4, 7530005), (5, 6024004), (7, 4302860), (10, 3012002), (14, 2151430), (20, 1506001), (28, 1075715), (35, 860572), (70, 430286), (140, 215143)]