161989184

素因数分解:

$2^6\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:320

約数の個数: 112

約数和(自身を含む): 390144000

約数和(自身を除く): 228154816

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 56, 64, 79, 92, 112, 158, 161, 184, 199, 224, 316, 322, 368, 398, 448, 553, 632, 644, 736, 796, 1106, 1264, 1288, 1393, 1472, 1592, 1817, 2212, 2528, 2576, 2786, 3184, 3634, 4424, 4577, 5056, 5152, 5572, 6368, 7268, 8848, 9154, 10304, 11144, 12719, 12736, 14536, 15721, 17696, 18308, 22288, 25438, 29072, 31442, 32039, 35392, 36616, 44576, 50876, 58144, 62884, 64078, 73232, 89152, 101752, 110047, 116288, 125768, 128156, 146464, 203504, 220094, 251536, 256312, 292928, 361583, 407008, 440188, 503072, 512624, 723166, 814016, 880376, 1006144, 1025248, 1446332, 1760752, 2050496, 2531081, 2892664, 3521504, 5062162, 5785328, 7043008, 10124324, 11570656, 20248648, 23141312, 40497296, 80994592, 161989184]

約数ペア:

[(1, 161989184), (2, 80994592), (4, 40497296), (7, 23141312), (8, 20248648), (14, 11570656), (16, 10124324), (23, 7043008), (28, 5785328), (32, 5062162), (46, 3521504), (56, 2892664), (64, 2531081), (79, 2050496), (92, 1760752), (112, 1446332), (158, 1025248), (161, 1006144), (184, 880376), (199, 814016), (224, 723166), (316, 512624), (322, 503072), (368, 440188), (398, 407008), (448, 361583), (553, 292928), (632, 256312), (644, 251536), (736, 220094), (796, 203504), (1106, 146464), (1264, 128156), (1288, 125768), (1393, 116288), (1472, 110047), (1592, 101752), (1817, 89152), (2212, 73232), (2528, 64078), (2576, 62884), (2786, 58144), (3184, 50876), (3634, 44576), (4424, 36616), (4577, 35392), (5056, 32039), (5152, 31442), (5572, 29072), (6368, 25438), (7268, 22288), (8848, 18308), (9154, 17696), (10304, 15721), (11144, 14536), (12719, 12736)]