20566672

素因数分解:

$2^4\times 7^2\times {\mathrm{37}}^1\times {\mathrm{709}}^1$

素因数の和:768

約数の個数: 60

約数和(自身を含む): 47673660

約数和(自身を除く): 27106988

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 49, 56, 74, 98, 112, 148, 196, 259, 296, 392, 518, 592, 709, 784, 1036, 1418, 1813, 2072, 2836, 3626, 4144, 4963, 5672, 7252, 9926, 11344, 14504, 19852, 26233, 29008, 34741, 39704, 52466, 69482, 79408, 104932, 138964, 183631, 209864, 277928, 367262, 419728, 555856, 734524, 1285417, 1469048, 2570834, 2938096, 5141668, 10283336, 20566672]

約数ペア:

[(1, 20566672), (2, 10283336), (4, 5141668), (7, 2938096), (8, 2570834), (14, 1469048), (16, 1285417), (28, 734524), (37, 555856), (49, 419728), (56, 367262), (74, 277928), (98, 209864), (112, 183631), (148, 138964), (196, 104932), (259, 79408), (296, 69482), (392, 52466), (518, 39704), (592, 34741), (709, 29008), (784, 26233), (1036, 19852), (1418, 14504), (1813, 11344), (2072, 9926), (2836, 7252), (3626, 5672), (4144, 4963)]