31688272

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{89}}^1$

素因数の和:149

約数の個数: 120

約数和(自身を含む): 82226880

約数和(自身を除く): 50538608

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 17, 22, 28, 34, 44, 56, 68, 77, 88, 89, 112, 119, 136, 154, 176, 178, 187, 238, 272, 289, 308, 356, 374, 476, 578, 616, 623, 712, 748, 952, 979, 1156, 1232, 1246, 1309, 1424, 1496, 1513, 1904, 1958, 2023, 2312, 2492, 2618, 2992, 3026, 3179, 3916, 4046, 4624, 4984, 5236, 6052, 6358, 6853, 7832, 8092, 9968, 10472, 10591, 12104, 12716, 13706, 15664, 16184, 16643, 20944, 21182, 22253, 24208, 25432, 25721, 27412, 32368, 33286, 42364, 44506, 50864, 51442, 54824, 66572, 84728, 89012, 102884, 109648, 116501, 133144, 169456, 178024, 180047, 205768, 233002, 266288, 282931, 356048, 360094, 411536, 466004, 565862, 720188, 932008, 1131724, 1440376, 1864016, 1980517, 2263448, 2880752, 3961034, 4526896, 7922068, 15844136, 31688272]

約数ペア:

[(1, 31688272), (2, 15844136), (4, 7922068), (7, 4526896), (8, 3961034), (11, 2880752), (14, 2263448), (16, 1980517), (17, 1864016), (22, 1440376), (28, 1131724), (34, 932008), (44, 720188), (56, 565862), (68, 466004), (77, 411536), (88, 360094), (89, 356048), (112, 282931), (119, 266288), (136, 233002), (154, 205768), (176, 180047), (178, 178024), (187, 169456), (238, 133144), (272, 116501), (289, 109648), (308, 102884), (356, 89012), (374, 84728), (476, 66572), (578, 54824), (616, 51442), (623, 50864), (712, 44506), (748, 42364), (952, 33286), (979, 32368), (1156, 27412), (1232, 25721), (1246, 25432), (1309, 24208), (1424, 22253), (1496, 21182), (1513, 20944), (1904, 16643), (1958, 16184), (2023, 15664), (2312, 13706), (2492, 12716), (2618, 12104), (2992, 10591), (3026, 10472), (3179, 9968), (3916, 8092), (4046, 7832), (4624, 6853), (4984, 6358), (5236, 6052)]