20455128

素因数分解:

$2^3\times 3^2\times {\mathrm{127}}^1\times {\mathrm{2237}}^1$

素因数の和:2376

約数の個数: 48

約数和(自身を含む): 55860480

約数和(自身を除く): 35405352

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 127, 254, 381, 508, 762, 1016, 1143, 1524, 2237, 2286, 3048, 4474, 4572, 6711, 8948, 9144, 13422, 17896, 20133, 26844, 40266, 53688, 80532, 161064, 284099, 568198, 852297, 1136396, 1704594, 2272792, 2556891, 3409188, 5113782, 6818376, 10227564, 20455128]

約数ペア:

[(1, 20455128), (2, 10227564), (3, 6818376), (4, 5113782), (6, 3409188), (8, 2556891), (9, 2272792), (12, 1704594), (18, 1136396), (24, 852297), (36, 568198), (72, 284099), (127, 161064), (254, 80532), (381, 53688), (508, 40266), (762, 26844), (1016, 20133), (1143, 17896), (1524, 13422), (2237, 9144), (2286, 8948), (3048, 6711), (4474, 4572)]