20419168

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8287}}^1$

素因数の和:8315

約数の個数: 48

約数和(自身を含む): 50125824

約数和(自身を除く): 29706656

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 77, 88, 112, 154, 176, 224, 308, 352, 616, 1232, 2464, 8287, 16574, 33148, 58009, 66296, 91157, 116018, 132592, 182314, 232036, 265184, 364628, 464072, 638099, 729256, 928144, 1276198, 1458512, 1856288, 2552396, 2917024, 5104792, 10209584, 20419168]

約数ペア:

[(1, 20419168), (2, 10209584), (4, 5104792), (7, 2917024), (8, 2552396), (11, 1856288), (14, 1458512), (16, 1276198), (22, 928144), (28, 729256), (32, 638099), (44, 464072), (56, 364628), (77, 265184), (88, 232036), (112, 182314), (154, 132592), (176, 116018), (224, 91157), (308, 66296), (352, 58009), (616, 33148), (1232, 16574), (2464, 8287)]