19487888

素因数分解:

$2^4\times 7^3\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:149

約数の個数: 80

約数和(自身を含む): 45532800

約数和(自身を除く): 26044912

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 53, 56, 67, 98, 106, 112, 134, 196, 212, 268, 343, 371, 392, 424, 469, 536, 686, 742, 784, 848, 938, 1072, 1372, 1484, 1876, 2597, 2744, 2968, 3283, 3551, 3752, 5194, 5488, 5936, 6566, 7102, 7504, 10388, 13132, 14204, 18179, 20776, 22981, 24857, 26264, 28408, 36358, 41552, 45962, 49714, 52528, 56816, 72716, 91924, 99428, 145432, 173999, 183848, 198856, 290864, 347998, 367696, 397712, 695996, 1217993, 1391992, 2435986, 2783984, 4871972, 9743944, 19487888]

約数ペア:

[(1, 19487888), (2, 9743944), (4, 4871972), (7, 2783984), (8, 2435986), (14, 1391992), (16, 1217993), (28, 695996), (49, 397712), (53, 367696), (56, 347998), (67, 290864), (98, 198856), (106, 183848), (112, 173999), (134, 145432), (196, 99428), (212, 91924), (268, 72716), (343, 56816), (371, 52528), (392, 49714), (424, 45962), (469, 41552), (536, 36358), (686, 28408), (742, 26264), (784, 24857), (848, 22981), (938, 20776), (1072, 18179), (1372, 14204), (1484, 13132), (1876, 10388), (2597, 7504), (2744, 7102), (2968, 6566), (3283, 5936), (3551, 5488), (3752, 5194)]