20149597916

素因数分解:

$2^2\times 7^2\times {\mathrm{157}}^1\times {\mathrm{654803}}^1$

素因数の和:654978

約数の個数: 36

約数和(自身を含む): 41280153768

約数和(自身を除く): 21130555852

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 157, 196, 314, 628, 1099, 2198, 4396, 7693, 15386, 30772, 654803, 1309606, 2619212, 4583621, 9167242, 18334484, 32085347, 64170694, 102804071, 128341388, 205608142, 411216284, 719628497, 1439256994, 2878513988, 5037399479, 10074798958, 20149597916]

約数ペア:

[(1, 20149597916), (2, 10074798958), (4, 5037399479), (7, 2878513988), (14, 1439256994), (28, 719628497), (49, 411216284), (98, 205608142), (157, 128341388), (196, 102804071), (314, 64170694), (628, 32085347), (1099, 18334484), (2198, 9167242), (4396, 4583621), (7693, 2619212), (15386, 1309606), (30772, 654803)]