18708768

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1$

素因数の和:311

約数の個数: 144

約数和(自身を含む): 60540480

約数和(自身を除く): 41831712

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 19, 24, 26, 32, 36, 38, 39, 48, 52, 57, 72, 76, 78, 96, 104, 114, 117, 144, 152, 156, 171, 208, 228, 234, 247, 263, 288, 304, 312, 342, 416, 456, 468, 494, 526, 608, 624, 684, 741, 789, 912, 936, 988, 1052, 1248, 1368, 1482, 1578, 1824, 1872, 1976, 2104, 2223, 2367, 2736, 2964, 3156, 3419, 3744, 3952, 4208, 4446, 4734, 4997, 5472, 5928, 6312, 6838, 7904, 8416, 8892, 9468, 9994, 10257, 11856, 12624, 13676, 14991, 17784, 18936, 19988, 20514, 23712, 25248, 27352, 29982, 30771, 35568, 37872, 39976, 41028, 44973, 54704, 59964, 61542, 64961, 71136, 75744, 79952, 82056, 89946, 109408, 119928, 123084, 129922, 159904, 164112, 179892, 194883, 239856, 246168, 259844, 328224, 359784, 389766, 479712, 492336, 519688, 584649, 719568, 779532, 984672, 1039376, 1169298, 1439136, 1559064, 2078752, 2338596, 3118128, 4677192, 6236256, 9354384, 18708768]

約数ペア:

[(1, 18708768), (2, 9354384), (3, 6236256), (4, 4677192), (6, 3118128), (8, 2338596), (9, 2078752), (12, 1559064), (13, 1439136), (16, 1169298), (18, 1039376), (19, 984672), (24, 779532), (26, 719568), (32, 584649), (36, 519688), (38, 492336), (39, 479712), (48, 389766), (52, 359784), (57, 328224), (72, 259844), (76, 246168), (78, 239856), (96, 194883), (104, 179892), (114, 164112), (117, 159904), (144, 129922), (152, 123084), (156, 119928), (171, 109408), (208, 89946), (228, 82056), (234, 79952), (247, 75744), (263, 71136), (288, 64961), (304, 61542), (312, 59964), (342, 54704), (416, 44973), (456, 41028), (468, 39976), (494, 37872), (526, 35568), (608, 30771), (624, 29982), (684, 27352), (741, 25248), (789, 23712), (912, 20514), (936, 19988), (988, 18936), (1052, 17784), (1248, 14991), (1368, 13676), (1482, 12624), (1578, 11856), (1824, 10257), (1872, 9994), (1976, 9468), (2104, 8892), (2223, 8416), (2367, 7904), (2736, 6838), (2964, 6312), (3156, 5928), (3419, 5472), (3744, 4997), (3952, 4734), (4208, 4446)]