20164296740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{461}}^1\times {\mathrm{44633}}^1$

素因数の和:45117

約数の個数: 72

約数和(自身を含む): 49366453752

約数和(自身を除く): 29202157012

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 461, 490, 922, 980, 1844, 2305, 3227, 4610, 6454, 9220, 12908, 16135, 22589, 32270, 44633, 45178, 64540, 89266, 90356, 112945, 178532, 223165, 225890, 312431, 446330, 451780, 624862, 892660, 1249724, 1562155, 2187017, 3124310, 4374034, 6248620, 8748068, 10935085, 20575813, 21870170, 41151626, 43740340, 82303252, 102879065, 144030691, 205758130, 288061382, 411516260, 576122764, 720153455, 1008214837, 1440306910, 2016429674, 2880613820, 4032859348, 5041074185, 10082148370, 20164296740]

約数ペア:

[(1, 20164296740), (2, 10082148370), (4, 5041074185), (5, 4032859348), (7, 2880613820), (10, 2016429674), (14, 1440306910), (20, 1008214837), (28, 720153455), (35, 576122764), (49, 411516260), (70, 288061382), (98, 205758130), (140, 144030691), (196, 102879065), (245, 82303252), (461, 43740340), (490, 41151626), (922, 21870170), (980, 20575813), (1844, 10935085), (2305, 8748068), (3227, 6248620), (4610, 4374034), (6454, 3124310), (9220, 2187017), (12908, 1562155), (16135, 1249724), (22589, 892660), (32270, 624862), (44633, 451780), (45178, 446330), (64540, 312431), (89266, 225890), (90356, 223165), (112945, 178532)]