20301984

素因数分解:

$2^5\times 3^2\times {\mathrm{157}}^1\times {\mathrm{449}}^1$

素因数の和:622

約数の個数: 72

約数和(自身を含む): 58230900

約数和(自身を除く): 37928916

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 157, 288, 314, 449, 471, 628, 898, 942, 1256, 1347, 1413, 1796, 1884, 2512, 2694, 2826, 3592, 3768, 4041, 5024, 5388, 5652, 7184, 7536, 8082, 10776, 11304, 14368, 15072, 16164, 21552, 22608, 32328, 43104, 45216, 64656, 70493, 129312, 140986, 211479, 281972, 422958, 563944, 634437, 845916, 1127888, 1268874, 1691832, 2255776, 2537748, 3383664, 5075496, 6767328, 10150992, 20301984]

約数ペア:

[(1, 20301984), (2, 10150992), (3, 6767328), (4, 5075496), (6, 3383664), (8, 2537748), (9, 2255776), (12, 1691832), (16, 1268874), (18, 1127888), (24, 845916), (32, 634437), (36, 563944), (48, 422958), (72, 281972), (96, 211479), (144, 140986), (157, 129312), (288, 70493), (314, 64656), (449, 45216), (471, 43104), (628, 32328), (898, 22608), (942, 21552), (1256, 16164), (1347, 15072), (1413, 14368), (1796, 11304), (1884, 10776), (2512, 8082), (2694, 7536), (2826, 7184), (3592, 5652), (3768, 5388), (4041, 5024)]