20456016

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2647}}^1$

素因数の和:2688

約数の個数: 80

約数和(自身を含む): 63043584

約数和(自身を除く): 42587568

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 23, 24, 28, 42, 46, 48, 56, 69, 84, 92, 112, 138, 161, 168, 184, 276, 322, 336, 368, 483, 552, 644, 966, 1104, 1288, 1932, 2576, 2647, 3864, 5294, 7728, 7941, 10588, 15882, 18529, 21176, 31764, 37058, 42352, 55587, 60881, 63528, 74116, 111174, 121762, 127056, 148232, 182643, 222348, 243524, 296464, 365286, 426167, 444696, 487048, 730572, 852334, 889392, 974096, 1278501, 1461144, 1704668, 2557002, 2922288, 3409336, 5114004, 6818672, 10228008, 20456016]

約数ペア:

[(1, 20456016), (2, 10228008), (3, 6818672), (4, 5114004), (6, 3409336), (7, 2922288), (8, 2557002), (12, 1704668), (14, 1461144), (16, 1278501), (21, 974096), (23, 889392), (24, 852334), (28, 730572), (42, 487048), (46, 444696), (48, 426167), (56, 365286), (69, 296464), (84, 243524), (92, 222348), (112, 182643), (138, 148232), (161, 127056), (168, 121762), (184, 111174), (276, 74116), (322, 63528), (336, 60881), (368, 55587), (483, 42352), (552, 37058), (644, 31764), (966, 21176), (1104, 18529), (1288, 15882), (1932, 10588), (2576, 7941), (2647, 7728), (3864, 5294)]