18500664

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:269

約数の個数: 128

約数和(自身を含む): 58544640

約数和(自身を除く): 40043976

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 43, 52, 56, 78, 84, 86, 91, 104, 129, 156, 168, 172, 182, 197, 258, 273, 301, 312, 344, 364, 394, 516, 546, 559, 591, 602, 728, 788, 903, 1032, 1092, 1118, 1182, 1204, 1379, 1576, 1677, 1806, 2184, 2236, 2364, 2408, 2561, 2758, 3354, 3612, 3913, 4137, 4472, 4728, 5122, 5516, 6708, 7224, 7683, 7826, 8274, 8471, 10244, 11032, 11739, 13416, 15366, 15652, 16548, 16942, 17927, 20488, 23478, 25413, 30732, 31304, 33096, 33884, 35854, 46956, 50826, 53781, 59297, 61464, 67768, 71708, 93912, 101652, 107562, 110123, 118594, 143416, 177891, 203304, 215124, 220246, 237188, 330369, 355782, 430248, 440492, 474376, 660738, 711564, 770861, 880984, 1321476, 1423128, 1541722, 2312583, 2642952, 3083444, 4625166, 6166888, 9250332, 18500664]

約数ペア:

[(1, 18500664), (2, 9250332), (3, 6166888), (4, 4625166), (6, 3083444), (7, 2642952), (8, 2312583), (12, 1541722), (13, 1423128), (14, 1321476), (21, 880984), (24, 770861), (26, 711564), (28, 660738), (39, 474376), (42, 440492), (43, 430248), (52, 355782), (56, 330369), (78, 237188), (84, 220246), (86, 215124), (91, 203304), (104, 177891), (129, 143416), (156, 118594), (168, 110123), (172, 107562), (182, 101652), (197, 93912), (258, 71708), (273, 67768), (301, 61464), (312, 59297), (344, 53781), (364, 50826), (394, 46956), (516, 35854), (546, 33884), (559, 33096), (591, 31304), (602, 30732), (728, 25413), (788, 23478), (903, 20488), (1032, 17927), (1092, 16942), (1118, 16548), (1182, 15652), (1204, 15366), (1379, 13416), (1576, 11739), (1677, 11032), (1806, 10244), (2184, 8471), (2236, 8274), (2364, 7826), (2408, 7683), (2561, 7224), (2758, 6708), (3354, 5516), (3612, 5122), (3913, 4728), (4137, 4472)]