About the Number

128216928

128216927 ← → 128216929

2進数表記:111101001000110111101100000

漢数字表記:一億二千八百二十一万六千九百二十八

素因数分解:

2 5 × 3 1 × 7 2 × 97 1 × 281 1

素因数の和:405
約数の個数: 144
約数和(自身を含む): 396963504
約数和(自身を除く): 268746576

約数列:
[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 49, 56, 84, 96, 97, 98, 112, 147, 168, 194, 196, 224, 281, 291, 294, 336, 388, 392, 562, 582, 588, 672, 679, 776, 784, 843, 1124, 1164, 1176, 1358, 1552, 1568, 1686, 1967, 2037, 2248, 2328, 2352, 2716, 3104, 3372, 3934, 4074, 4496, 4656, 4704, 4753, 5432, 5901, 6744, 7868, 8148, 8992, 9312, 9506, 10864, 11802, 13488, 13769, 14259, 15736, 16296, 19012, 21728, 23604, 26976, 27257, 27538, 28518, 31472, 32592, 38024, 41307, 47208, 54514, 55076, 57036, 62944, 65184, 76048, 81771, 82614, 94416, 109028, 110152, 114072, 152096, 163542, 165228, 188832, 190799, 218056, 220304, 228144, 327084, 330456, 381598, 436112, 440608, 456288, 572397, 654168, 660912, 763196, 872224, 1144794, 1308336, 1321824, 1335593, 1526392, 2289588, 2616672, 2671186, 3052784, 4006779, 4579176, 5342372, 6105568, 8013558, 9158352, 10684744, 16027116, 18316704, 21369488, 32054232, 42738976, 64108464, 128216928]

約数ペア:
[(1, 128216928), (2, 64108464), (3, 42738976), (4, 32054232), (6, 21369488), (7, 18316704), (8, 16027116), (12, 10684744), (14, 9158352), (16, 8013558), (21, 6105568), (24, 5342372), (28, 4579176), (32, 4006779), (42, 3052784), (48, 2671186), (49, 2616672), (56, 2289588), (84, 1526392), (96, 1335593), (97, 1321824), (98, 1308336), (112, 1144794), (147, 872224), (168, 763196), (194, 660912), (196, 654168), (224, 572397), (281, 456288), (291, 440608), (294, 436112), (336, 381598), (388, 330456), (392, 327084), (562, 228144), (582, 220304), (588, 218056), (672, 190799), (679, 188832), (776, 165228), (784, 163542), (843, 152096), (1124, 114072), (1164, 110152), (1176, 109028), (1358, 94416), (1552, 82614), (1568, 81771), (1686, 76048), (1967, 65184), (2037, 62944), (2248, 57036), (2328, 55076), (2352, 54514), (2716, 47208), (3104, 41307), (3372, 38024), (3934, 32592), (4074, 31472), (4496, 28518), (4656, 27538), (4704, 27257), (4753, 26976), (5432, 23604), (5901, 21728), (6744, 19012), (7868, 16296), (8148, 15736), (8992, 14259), (9312, 13769), (9506, 13488), (10864, 11802)]

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