20578408052

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1381}}^1\times {\mathrm{2203}}^1$

素因数の和:3696

約数の個数: 48

約数和(自身を含む): 38378692800

約数和(自身を除く): 17800284748

約数列:

[1, 2, 4, 19, 38, 76, 89, 178, 356, 1381, 1691, 2203, 2762, 3382, 4406, 5524, 6764, 8812, 26239, 41857, 52478, 83714, 104956, 122909, 167428, 196067, 245818, 392134, 491636, 784268, 2335271, 3042343, 3725273, 4670542, 6084686, 7450546, 9341084, 12169372, 14901092, 57804517, 115609034, 231218068, 270768527, 541537054, 1083074108, 5144602013, 10289204026, 20578408052]

約数ペア:

[(1, 20578408052), (2, 10289204026), (4, 5144602013), (19, 1083074108), (38, 541537054), (76, 270768527), (89, 231218068), (178, 115609034), (356, 57804517), (1381, 14901092), (1691, 12169372), (2203, 9341084), (2762, 7450546), (3382, 6084686), (4406, 4670542), (5524, 3725273), (6764, 3042343), (8812, 2335271), (26239, 784268), (41857, 491636), (52478, 392134), (83714, 245818), (104956, 196067), (122909, 167428)]