18886285

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:130

約数の個数: 48

約数和(自身を含む): 27578880

約数和(自身を除く): 8692595

約数列:

[1, 5, 11, 19, 31, 53, 55, 95, 121, 155, 209, 265, 341, 583, 589, 605, 1007, 1045, 1643, 1705, 2299, 2915, 2945, 3751, 5035, 6413, 6479, 8215, 11077, 11495, 18073, 18755, 31217, 32065, 32395, 55385, 71269, 90365, 121847, 156085, 198803, 343387, 356345, 609235, 994015, 1716935, 3777257, 18886285]

約数ペア:

[(1, 18886285), (5, 3777257), (11, 1716935), (19, 994015), (31, 609235), (53, 356345), (55, 343387), (95, 198803), (121, 156085), (155, 121847), (209, 90365), (265, 71269), (341, 55385), (583, 32395), (589, 32065), (605, 31217), (1007, 18755), (1045, 18073), (1643, 11495), (1705, 11077), (2299, 8215), (2915, 6479), (2945, 6413), (3751, 5035)]