51811640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{283}}^1$

素因数の和:516

約数の個数: 64

約数和(自身を含む): 122688000

約数和(自身を除く): 70876360

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 199, 230, 283, 398, 460, 566, 796, 920, 995, 1132, 1415, 1592, 1990, 2264, 2830, 3980, 4577, 5660, 6509, 7960, 9154, 11320, 13018, 18308, 22885, 26036, 32545, 36616, 45770, 52072, 56317, 65090, 91540, 112634, 130180, 183080, 225268, 260360, 281585, 450536, 563170, 1126340, 1295291, 2252680, 2590582, 5181164, 6476455, 10362328, 12952910, 25905820, 51811640]

約数ペア:

[(1, 51811640), (2, 25905820), (4, 12952910), (5, 10362328), (8, 6476455), (10, 5181164), (20, 2590582), (23, 2252680), (40, 1295291), (46, 1126340), (92, 563170), (115, 450536), (184, 281585), (199, 260360), (230, 225268), (283, 183080), (398, 130180), (460, 112634), (566, 91540), (796, 65090), (920, 56317), (995, 52072), (1132, 45770), (1415, 36616), (1592, 32545), (1990, 26036), (2264, 22885), (2830, 18308), (3980, 13018), (4577, 11320), (5660, 9154), (6509, 7960)]