81800144

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{1117}}^1$

素因数の和:1347

約数の個数: 40

約数和(自身を含む): 166358400

約数和(自身を除く): 84558256

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 199, 368, 398, 796, 1117, 1592, 2234, 3184, 4468, 4577, 8936, 9154, 17872, 18308, 25691, 36616, 51382, 73232, 102764, 205528, 222283, 411056, 444566, 889132, 1778264, 3556528, 5112509, 10225018, 20450036, 40900072, 81800144]

約数ペア:

[(1, 81800144), (2, 40900072), (4, 20450036), (8, 10225018), (16, 5112509), (23, 3556528), (46, 1778264), (92, 889132), (184, 444566), (199, 411056), (368, 222283), (398, 205528), (796, 102764), (1117, 73232), (1592, 51382), (2234, 36616), (3184, 25691), (4468, 18308), (4577, 17872), (8936, 9154)]