641426688

素因数分解:

$2^8\times 3^6\times 7^1\times {\mathrm{491}}^1$

素因数の和:532

約数の個数: 252

約数和(自身を含む): 2198346528

約数和(自身を除く): 1556919840

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 64, 72, 81, 84, 96, 108, 112, 126, 128, 144, 162, 168, 189, 192, 216, 224, 243, 252, 256, 288, 324, 336, 378, 384, 432, 448, 486, 491, 504, 567, 576, 648, 672, 729, 756, 768, 864, 896, 972, 982, 1008, 1134, 1152, 1296, 1344, 1458, 1473, 1512, 1701, 1728, 1792, 1944, 1964, 2016, 2268, 2304, 2592, 2688, 2916, 2946, 3024, 3402, 3437, 3456, 3888, 3928, 4032, 4419, 4536, 5103, 5184, 5376, 5832, 5892, 6048, 6804, 6874, 6912, 7776, 7856, 8064, 8838, 9072, 10206, 10311, 10368, 11664, 11784, 12096, 13257, 13608, 13748, 15552, 15712, 16128, 17676, 18144, 20412, 20622, 20736, 23328, 23568, 24192, 26514, 27216, 27496, 30933, 31104, 31424, 35352, 36288, 39771, 40824, 41244, 46656, 47136, 48384, 53028, 54432, 54992, 61866, 62208, 62848, 70704, 72576, 79542, 81648, 82488, 92799, 93312, 94272, 106056, 108864, 109984, 119313, 123732, 125696, 141408, 145152, 159084, 163296, 164976, 185598, 186624, 188544, 212112, 217728, 219968, 238626, 247464, 278397, 282816, 318168, 326592, 329952, 357939, 371196, 377088, 424224, 435456, 439936, 477252, 494928, 556794, 565632, 636336, 653184, 659904, 715878, 742392, 835191, 848448, 879872, 954504, 989856, 1113588, 1131264, 1272672, 1306368, 1319808, 1431756, 1484784, 1670382, 1696896, 1909008, 1979712, 2227176, 2505573, 2545344, 2639616, 2863512, 2969568, 3340764, 3393792, 3818016, 3959424, 4454352, 5011146, 5090688, 5727024, 5939136, 6681528, 7636032, 7918848, 8908704, 10022292, 10181376, 11454048, 11878272, 13363056, 15272064, 17817408, 20044584, 22908096, 23756544, 26726112, 30544128, 35634816, 40089168, 45816192, 53452224, 71269632, 80178336, 91632384, 106904448, 160356672, 213808896, 320713344, 641426688]

約数ペア:

[(1, 641426688), (2, 320713344), (3, 213808896), (4, 160356672), (6, 106904448), (7, 91632384), (8, 80178336), (9, 71269632), (12, 53452224), (14, 45816192), (16, 40089168), (18, 35634816), (21, 30544128), (24, 26726112), (27, 23756544), (28, 22908096), (32, 20044584), (36, 17817408), (42, 15272064), (48, 13363056), (54, 11878272), (56, 11454048), (63, 10181376), (64, 10022292), (72, 8908704), (81, 7918848), (84, 7636032), (96, 6681528), (108, 5939136), (112, 5727024), (126, 5090688), (128, 5011146), (144, 4454352), (162, 3959424), (168, 3818016), (189, 3393792), (192, 3340764), (216, 2969568), (224, 2863512), (243, 2639616), (252, 2545344), (256, 2505573), (288, 2227176), (324, 1979712), (336, 1909008), (378, 1696896), (384, 1670382), (432, 1484784), (448, 1431756), (486, 1319808), (491, 1306368), (504, 1272672), (567, 1131264), (576, 1113588), (648, 989856), (672, 954504), (729, 879872), (756, 848448), (768, 835191), (864, 742392), (896, 715878), (972, 659904), (982, 653184), (1008, 636336), (1134, 565632), (1152, 556794), (1296, 494928), (1344, 477252), (1458, 439936), (1473, 435456), (1512, 424224), (1701, 377088), (1728, 371196), (1792, 357939), (1944, 329952), (1964, 326592), (2016, 318168), (2268, 282816), (2304, 278397), (2592, 247464), (2688, 238626), (2916, 219968), (2946, 217728), (3024, 212112), (3402, 188544), (3437, 186624), (3456, 185598), (3888, 164976), (3928, 163296), (4032, 159084), (4419, 145152), (4536, 141408), (5103, 125696), (5184, 123732), (5376, 119313), (5832, 109984), (5892, 108864), (6048, 106056), (6804, 94272), (6874, 93312), (6912, 92799), (7776, 82488), (7856, 81648), (8064, 79542), (8838, 72576), (9072, 70704), (10206, 62848), (10311, 62208), (10368, 61866), (11664, 54992), (11784, 54432), (12096, 53028), (13257, 48384), (13608, 47136), (13748, 46656), (15552, 41244), (15712, 40824), (16128, 39771), (17676, 36288), (18144, 35352), (20412, 31424), (20622, 31104), (20736, 30933), (23328, 27496), (23568, 27216), (24192, 26514)]