20369888

素因数分解:

$2^5\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1181}}^1$

素因数の和:1216

約数の個数: 72

約数和(自身を含む): 50934744

約数和(自身を除く): 30564856

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 49, 56, 77, 88, 98, 112, 154, 176, 196, 224, 308, 352, 392, 539, 616, 784, 1078, 1181, 1232, 1568, 2156, 2362, 2464, 4312, 4724, 8267, 8624, 9448, 12991, 16534, 17248, 18896, 25982, 33068, 37792, 51964, 57869, 66136, 90937, 103928, 115738, 132272, 181874, 207856, 231476, 264544, 363748, 415712, 462952, 636559, 727496, 925904, 1273118, 1454992, 1851808, 2546236, 2909984, 5092472, 10184944, 20369888]

約数ペア:

[(1, 20369888), (2, 10184944), (4, 5092472), (7, 2909984), (8, 2546236), (11, 1851808), (14, 1454992), (16, 1273118), (22, 925904), (28, 727496), (32, 636559), (44, 462952), (49, 415712), (56, 363748), (77, 264544), (88, 231476), (98, 207856), (112, 181874), (154, 132272), (176, 115738), (196, 103928), (224, 90937), (308, 66136), (352, 57869), (392, 51964), (539, 37792), (616, 33068), (784, 25982), (1078, 18896), (1181, 17248), (1232, 16534), (1568, 12991), (2156, 9448), (2362, 8624), (2464, 8267), (4312, 4724)]