20127184

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2$

素因数の和:105

約数の個数: 120

約数和(自身を含む): 53193024

約数和(自身を除く): 33065840

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 17, 22, 28, 31, 34, 44, 56, 62, 68, 77, 88, 112, 119, 124, 136, 154, 176, 187, 217, 238, 248, 272, 308, 341, 374, 434, 476, 496, 527, 616, 682, 748, 868, 952, 961, 1054, 1232, 1309, 1364, 1496, 1736, 1904, 1922, 2108, 2387, 2618, 2728, 2992, 3472, 3689, 3844, 4216, 4774, 5236, 5456, 5797, 6727, 7378, 7688, 8432, 9548, 10472, 10571, 11594, 13454, 14756, 15376, 16337, 19096, 20944, 21142, 23188, 26908, 29512, 32674, 38192, 40579, 42284, 46376, 53816, 59024, 65348, 73997, 81158, 84568, 92752, 107632, 114359, 130696, 147994, 162316, 169136, 179707, 228718, 261392, 295988, 324632, 359414, 457436, 591976, 649264, 718828, 914872, 1183952, 1257949, 1437656, 1829744, 2515898, 2875312, 5031796, 10063592, 20127184]

約数ペア:

[(1, 20127184), (2, 10063592), (4, 5031796), (7, 2875312), (8, 2515898), (11, 1829744), (14, 1437656), (16, 1257949), (17, 1183952), (22, 914872), (28, 718828), (31, 649264), (34, 591976), (44, 457436), (56, 359414), (62, 324632), (68, 295988), (77, 261392), (88, 228718), (112, 179707), (119, 169136), (124, 162316), (136, 147994), (154, 130696), (176, 114359), (187, 107632), (217, 92752), (238, 84568), (248, 81158), (272, 73997), (308, 65348), (341, 59024), (374, 53816), (434, 46376), (476, 42284), (496, 40579), (527, 38192), (616, 32674), (682, 29512), (748, 26908), (868, 23188), (952, 21142), (961, 20944), (1054, 19096), (1232, 16337), (1309, 15376), (1364, 14756), (1496, 13454), (1736, 11594), (1904, 10571), (1922, 10472), (2108, 9548), (2387, 8432), (2618, 7688), (2728, 7378), (2992, 6727), (3472, 5797), (3689, 5456), (3844, 5236), (4216, 4774)]