20781646204

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3761}}^1\times {\mathrm{4051}}^1$

素因数の和:7858

約数の個数: 48

約数和(自身を含む): 40974861312

約数和(自身を除く): 20193215108

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 124, 341, 682, 1364, 3761, 4051, 7522, 8102, 15044, 16204, 41371, 44561, 82742, 89122, 116591, 125581, 165484, 178244, 233182, 251162, 466364, 502324, 1282501, 1381391, 2565002, 2762782, 5130004, 5525564, 15235811, 30471622, 60943244, 167593921, 335187842, 472310141, 670375684, 944620282, 1889240564, 5195411551, 10390823102, 20781646204]

約数ペア:

[(1, 20781646204), (2, 10390823102), (4, 5195411551), (11, 1889240564), (22, 944620282), (31, 670375684), (44, 472310141), (62, 335187842), (124, 167593921), (341, 60943244), (682, 30471622), (1364, 15235811), (3761, 5525564), (4051, 5130004), (7522, 2762782), (8102, 2565002), (15044, 1381391), (16204, 1282501), (41371, 502324), (44561, 466364), (82742, 251162), (89122, 233182), (116591, 178244), (125581, 165484)]