2001019870

素因数分解:

$2^1\times 5^1\times {\mathrm{17977}}^1\times {\mathrm{11131}}^1$

素因数の和:29115

約数の個数: 16

約数和(自身を含む): 3602359728

約数和(自身を除く): 1601339858

約数列:

[1, 2, 5, 10, 11131, 17977, 22262, 35954, 55655, 89885, 111310, 179770, 200101987, 400203974, 1000509935, 2001019870]

約数ペア:

[(1, 2001019870), (2, 1000509935), (5, 400203974), (10, 200101987), (11131, 179770), (17977, 111310), (22262, 89885), (35954, 55655)]