2201997320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1280231}}^1$

素因数の和:1280285

約数の個数: 32

約数和(自身を含む): 5069718720

約数和(自身を除く): 2867721400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 1280231, 2560462, 5120924, 6401155, 10241848, 12802310, 25604620, 51209240, 55049933, 110099866, 220199732, 275249665, 440399464, 550499330, 1100998660, 2201997320]

約数ペア:

[(1, 2201997320), (2, 1100998660), (4, 550499330), (5, 440399464), (8, 275249665), (10, 220199732), (20, 110099866), (40, 55049933), (43, 51209240), (86, 25604620), (172, 12802310), (215, 10241848), (344, 6401155), (430, 5120924), (860, 2560462), (1720, 1280231)]