20109636280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{11691649}}^1$

素因数の和:11691703

約数の個数: 32

約数和(自身を含む): 46298934000

約数和(自身を除く): 26189297720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 11691649, 23383298, 46766596, 58458245, 93533192, 116916490, 233832980, 467665960, 502740907, 1005481814, 2010963628, 2513704535, 4021927256, 5027409070, 10054818140, 20109636280]

約数ペア:

[(1, 20109636280), (2, 10054818140), (4, 5027409070), (5, 4021927256), (8, 2513704535), (10, 2010963628), (20, 1005481814), (40, 502740907), (43, 467665960), (86, 233832980), (172, 116916490), (215, 93533192), (344, 58458245), (430, 46766596), (860, 23383298), (1720, 11691649)]