18888943556

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{137087}}^1$

素因数の和:137161

約数の個数: 72

約数和(自身を含む): 41570565120

約数和(自身を除く): 22681621564

約数列:

[1, 2, 4, 7, 14, 19, 28, 37, 38, 49, 74, 76, 98, 133, 148, 196, 259, 266, 518, 532, 703, 931, 1036, 1406, 1813, 1862, 2812, 3626, 3724, 4921, 7252, 9842, 19684, 34447, 68894, 137087, 137788, 274174, 548348, 959609, 1919218, 2604653, 3838436, 5072219, 5209306, 6717263, 10144438, 10418612, 13434526, 18232571, 20288876, 26869052, 35505533, 36465142, 71011066, 72930284, 96372161, 127627997, 142022132, 192744322, 248538731, 255255994, 385488644, 497077462, 510511988, 674605127, 994154924, 1349210254, 2698420508, 4722235889, 9444471778, 18888943556]

約数ペア:

[(1, 18888943556), (2, 9444471778), (4, 4722235889), (7, 2698420508), (14, 1349210254), (19, 994154924), (28, 674605127), (37, 510511988), (38, 497077462), (49, 385488644), (74, 255255994), (76, 248538731), (98, 192744322), (133, 142022132), (148, 127627997), (196, 96372161), (259, 72930284), (266, 71011066), (518, 36465142), (532, 35505533), (703, 26869052), (931, 20288876), (1036, 18232571), (1406, 13434526), (1813, 10418612), (1862, 10144438), (2812, 6717263), (3626, 5209306), (3724, 5072219), (4921, 3838436), (7252, 2604653), (9842, 1919218), (19684, 959609), (34447, 548348), (68894, 274174), (137087, 137788)]