20656944

素因数分解:

$2^4\times 3^6\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1$

素因数の和:67

約数の個数: 280

約数和(自身を含む): 78066432

約数和(自身を除く): 57409488

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 16, 18, 21, 22, 23, 24, 27, 28, 33, 36, 42, 44, 46, 48, 54, 56, 63, 66, 69, 72, 77, 81, 84, 88, 92, 99, 108, 112, 126, 132, 138, 144, 154, 161, 162, 168, 176, 184, 189, 198, 207, 216, 231, 243, 252, 253, 264, 276, 297, 308, 322, 324, 336, 368, 378, 396, 414, 432, 462, 483, 486, 504, 506, 528, 552, 567, 594, 616, 621, 644, 648, 693, 729, 756, 759, 792, 828, 891, 924, 966, 972, 1008, 1012, 1104, 1134, 1188, 1232, 1242, 1288, 1296, 1386, 1449, 1458, 1512, 1518, 1584, 1656, 1701, 1771, 1782, 1848, 1863, 1932, 1944, 2024, 2079, 2268, 2277, 2376, 2484, 2576, 2673, 2772, 2898, 2916, 3024, 3036, 3312, 3402, 3542, 3564, 3696, 3726, 3864, 3888, 4048, 4158, 4347, 4536, 4554, 4752, 4968, 5103, 5313, 5346, 5544, 5589, 5796, 5832, 6072, 6237, 6804, 6831, 7084, 7128, 7452, 7728, 8019, 8316, 8694, 9072, 9108, 9936, 10206, 10626, 10692, 11088, 11178, 11592, 11664, 12144, 12474, 13041, 13608, 13662, 14168, 14256, 14904, 15939, 16038, 16632, 16767, 17388, 18216, 18711, 20412, 20493, 21252, 21384, 22356, 23184, 24948, 26082, 27216, 27324, 28336, 29808, 31878, 32076, 33264, 33534, 34776, 36432, 37422, 39123, 40824, 40986, 42504, 42768, 44712, 47817, 49896, 52164, 54648, 56133, 61479, 63756, 64152, 67068, 69552, 74844, 78246, 81648, 81972, 85008, 89424, 95634, 99792, 104328, 109296, 112266, 117369, 122958, 127512, 128304, 134136, 143451, 149688, 156492, 163944, 184437, 191268, 208656, 224532, 234738, 245916, 255024, 268272, 286902, 299376, 312984, 327888, 368874, 382536, 430353, 449064, 469476, 491832, 573804, 625968, 737748, 765072, 860706, 898128, 938952, 983664, 1147608, 1291059, 1475496, 1721412, 1877904, 2295216, 2582118, 2950992, 3442824, 5164236, 6885648, 10328472, 20656944]

約数ペア:

[(1, 20656944), (2, 10328472), (3, 6885648), (4, 5164236), (6, 3442824), (7, 2950992), (8, 2582118), (9, 2295216), (11, 1877904), (12, 1721412), (14, 1475496), (16, 1291059), (18, 1147608), (21, 983664), (22, 938952), (23, 898128), (24, 860706), (27, 765072), (28, 737748), (33, 625968), (36, 573804), (42, 491832), (44, 469476), (46, 449064), (48, 430353), (54, 382536), (56, 368874), (63, 327888), (66, 312984), (69, 299376), (72, 286902), (77, 268272), (81, 255024), (84, 245916), (88, 234738), (92, 224532), (99, 208656), (108, 191268), (112, 184437), (126, 163944), (132, 156492), (138, 149688), (144, 143451), (154, 134136), (161, 128304), (162, 127512), (168, 122958), (176, 117369), (184, 112266), (189, 109296), (198, 104328), (207, 99792), (216, 95634), (231, 89424), (243, 85008), (252, 81972), (253, 81648), (264, 78246), (276, 74844), (297, 69552), (308, 67068), (322, 64152), (324, 63756), (336, 61479), (368, 56133), (378, 54648), (396, 52164), (414, 49896), (432, 47817), (462, 44712), (483, 42768), (486, 42504), (504, 40986), (506, 40824), (528, 39123), (552, 37422), (567, 36432), (594, 34776), (616, 33534), (621, 33264), (644, 32076), (648, 31878), (693, 29808), (729, 28336), (756, 27324), (759, 27216), (792, 26082), (828, 24948), (891, 23184), (924, 22356), (966, 21384), (972, 21252), (1008, 20493), (1012, 20412), (1104, 18711), (1134, 18216), (1188, 17388), (1232, 16767), (1242, 16632), (1288, 16038), (1296, 15939), (1386, 14904), (1449, 14256), (1458, 14168), (1512, 13662), (1518, 13608), (1584, 13041), (1656, 12474), (1701, 12144), (1771, 11664), (1782, 11592), (1848, 11178), (1863, 11088), (1932, 10692), (1944, 10626), (2024, 10206), (2079, 9936), (2268, 9108), (2277, 9072), (2376, 8694), (2484, 8316), (2576, 8019), (2673, 7728), (2772, 7452), (2898, 7128), (2916, 7084), (3024, 6831), (3036, 6804), (3312, 6237), (3402, 6072), (3542, 5832), (3564, 5796), (3696, 5589), (3726, 5544), (3864, 5346), (3888, 5313), (4048, 5103), (4158, 4968), (4347, 4752), (4536, 4554)]