20209870

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{87869}}^1$

素因数の和:87899

約数の個数: 16

約数和(自身を含む): 37959840

約数和(自身を除く): 17749970

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 87869, 175738, 439345, 878690, 2020987, 4041974, 10104935, 20209870]

約数ペア:

[(1, 20209870), (2, 10104935), (5, 4041974), (10, 2020987), (23, 878690), (46, 439345), (115, 175738), (230, 87869)]