20512221756

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2480917}}^1$

素因数の和:2480990

約数の個数: 48

約数和(自身を含む): 52516072224

約数和(自身を除く): 32003850468

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 53, 78, 106, 156, 159, 212, 318, 636, 689, 1378, 2067, 2756, 4134, 8268, 2480917, 4961834, 7442751, 9923668, 14885502, 29771004, 32251921, 64503842, 96755763, 129007684, 131488601, 193511526, 262977202, 387023052, 394465803, 525954404, 788931606, 1577863212, 1709351813, 3418703626, 5128055439, 6837407252, 10256110878, 20512221756]

約数ペア:

[(1, 20512221756), (2, 10256110878), (3, 6837407252), (4, 5128055439), (6, 3418703626), (12, 1709351813), (13, 1577863212), (26, 788931606), (39, 525954404), (52, 394465803), (53, 387023052), (78, 262977202), (106, 193511526), (156, 131488601), (159, 129007684), (212, 96755763), (318, 64503842), (636, 32251921), (689, 29771004), (1378, 14885502), (2067, 9923668), (2756, 7442751), (4134, 4961834), (8268, 2480917)]