20808536656

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{1087}}^1\times {\mathrm{70379}}^1$

素因数の和:71491

約数の個数: 40

約数和(自身を含む): 42727979520

約数和(自身を除く): 21919442864

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 1087, 2174, 4348, 8696, 17392, 18479, 36958, 70379, 73916, 140758, 147832, 281516, 295664, 563032, 1126064, 1196443, 2392886, 4785772, 9571544, 19143088, 76501973, 153003946, 306007892, 612015784, 1224031568, 1300533541, 2601067082, 5202134164, 10404268328, 20808536656]

約数ペア:

[(1, 20808536656), (2, 10404268328), (4, 5202134164), (8, 2601067082), (16, 1300533541), (17, 1224031568), (34, 612015784), (68, 306007892), (136, 153003946), (272, 76501973), (1087, 19143088), (2174, 9571544), (4348, 4785772), (8696, 2392886), (17392, 1196443), (18479, 1126064), (36958, 563032), (70379, 295664), (73916, 281516), (140758, 147832)]