20754240

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1663}}^1$

素因数の和:1696

約数の個数: 112

約数和(自身を含む): 71006208

約数和(自身を除く): 50251968

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 390, 416, 480, 520, 624, 780, 832, 960, 1040, 1248, 1560, 1663, 2080, 2496, 3120, 3326, 4160, 4989, 6240, 6652, 8315, 9978, 12480, 13304, 16630, 19956, 21619, 24945, 26608, 33260, 39912, 43238, 49890, 53216, 64857, 66520, 79824, 86476, 99780, 106432, 108095, 129714, 133040, 159648, 172952, 199560, 216190, 259428, 266080, 319296, 324285, 345904, 399120, 432380, 518856, 532160, 648570, 691808, 798240, 864760, 1037712, 1297140, 1383616, 1596480, 1729520, 2075424, 2594280, 3459040, 4150848, 5188560, 6918080, 10377120, 20754240]

約数ペア:

[(1, 20754240), (2, 10377120), (3, 6918080), (4, 5188560), (5, 4150848), (6, 3459040), (8, 2594280), (10, 2075424), (12, 1729520), (13, 1596480), (15, 1383616), (16, 1297140), (20, 1037712), (24, 864760), (26, 798240), (30, 691808), (32, 648570), (39, 532160), (40, 518856), (48, 432380), (52, 399120), (60, 345904), (64, 324285), (65, 319296), (78, 266080), (80, 259428), (96, 216190), (104, 199560), (120, 172952), (130, 159648), (156, 133040), (160, 129714), (192, 108095), (195, 106432), (208, 99780), (240, 86476), (260, 79824), (312, 66520), (320, 64857), (390, 53216), (416, 49890), (480, 43238), (520, 39912), (624, 33260), (780, 26608), (832, 24945), (960, 21619), (1040, 19956), (1248, 16630), (1560, 13304), (1663, 12480), (2080, 9978), (2496, 8315), (3120, 6652), (3326, 6240), (4160, 4989)]