18887440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{127}}^1$

素因数の和:177

約数の個数: 120

約数和(自身を含む): 52282368

約数和(自身を除く): 33394928

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 127, 130, 143, 169, 176, 208, 220, 254, 260, 286, 338, 440, 508, 520, 572, 635, 676, 715, 845, 880, 1016, 1040, 1144, 1270, 1352, 1397, 1430, 1651, 1690, 1859, 2032, 2288, 2540, 2704, 2794, 2860, 3302, 3380, 3718, 5080, 5588, 5720, 6604, 6760, 6985, 7436, 8255, 9295, 10160, 11176, 11440, 13208, 13520, 13970, 14872, 16510, 18161, 18590, 21463, 22352, 26416, 27940, 29744, 33020, 36322, 37180, 42926, 55880, 66040, 72644, 74360, 85852, 90805, 107315, 111760, 132080, 145288, 148720, 171704, 181610, 214630, 236093, 290576, 343408, 363220, 429260, 472186, 726440, 858520, 944372, 1180465, 1452880, 1717040, 1888744, 2360930, 3777488, 4721860, 9443720, 18887440]

約数ペア:

[(1, 18887440), (2, 9443720), (4, 4721860), (5, 3777488), (8, 2360930), (10, 1888744), (11, 1717040), (13, 1452880), (16, 1180465), (20, 944372), (22, 858520), (26, 726440), (40, 472186), (44, 429260), (52, 363220), (55, 343408), (65, 290576), (80, 236093), (88, 214630), (104, 181610), (110, 171704), (127, 148720), (130, 145288), (143, 132080), (169, 111760), (176, 107315), (208, 90805), (220, 85852), (254, 74360), (260, 72644), (286, 66040), (338, 55880), (440, 42926), (508, 37180), (520, 36322), (572, 33020), (635, 29744), (676, 27940), (715, 26416), (845, 22352), (880, 21463), (1016, 18590), (1040, 18161), (1144, 16510), (1270, 14872), (1352, 13970), (1397, 13520), (1430, 13208), (1651, 11440), (1690, 11176), (1859, 10160), (2032, 9295), (2288, 8255), (2540, 7436), (2704, 6985), (2794, 6760), (2860, 6604), (3302, 5720), (3380, 5588), (3718, 5080)]