20604664

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{283}}^1\times {\mathrm{479}}^1$

素因数の和:787

約数の個数: 32

約数和(自身を含む): 40896000

約数和(自身を除く): 20291336

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 283, 479, 566, 958, 1132, 1916, 2264, 3832, 5377, 9101, 10754, 18202, 21508, 36404, 43016, 72808, 135557, 271114, 542228, 1084456, 2575583, 5151166, 10302332, 20604664]

約数ペア:

[(1, 20604664), (2, 10302332), (4, 5151166), (8, 2575583), (19, 1084456), (38, 542228), (76, 271114), (152, 135557), (283, 72808), (479, 43016), (566, 36404), (958, 21508), (1132, 18202), (1916, 10754), (2264, 9101), (3832, 5377)]