20106680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45697}}^1$

素因数の和:45719

約数の個数: 32

約数和(自身を含む): 49353840

約数和(自身を除く): 29247160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45697, 91394, 182788, 228485, 365576, 456970, 502667, 913940, 1005334, 1827880, 2010668, 2513335, 4021336, 5026670, 10053340, 20106680]

約数ペア:

[(1, 20106680), (2, 10053340), (4, 5026670), (5, 4021336), (8, 2513335), (10, 2010668), (11, 1827880), (20, 1005334), (22, 913940), (40, 502667), (44, 456970), (55, 365576), (88, 228485), (110, 182788), (220, 91394), (440, 45697)]