About the Number

128238768

128238767 ← → 128238769

2進数表記:111101001001100010010110000

漢数字表記:一億二千八百二十三万八千七百六十八

素因数分解:

2 4 × 3 3 × 7 1 × 42407 1

素因数の和:42431
約数の個数: 80
約数和(自身を含む): 420687360
約数和(自身を除く): 292448592

約数列:
[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 36, 42, 48, 54, 56, 63, 72, 84, 108, 112, 126, 144, 168, 189, 216, 252, 336, 378, 432, 504, 756, 1008, 1512, 3024, 42407, 84814, 127221, 169628, 254442, 296849, 339256, 381663, 508884, 593698, 678512, 763326, 890547, 1017768, 1144989, 1187396, 1526652, 1781094, 2035536, 2289978, 2374792, 2671641, 3053304, 3562188, 4579956, 4749584, 5343282, 6106608, 7124376, 8014923, 9159912, 10686564, 14248752, 16029846, 18319824, 21373128, 32059692, 42746256, 64119384, 128238768]

約数ペア:
[(1, 128238768), (2, 64119384), (3, 42746256), (4, 32059692), (6, 21373128), (7, 18319824), (8, 16029846), (9, 14248752), (12, 10686564), (14, 9159912), (16, 8014923), (18, 7124376), (21, 6106608), (24, 5343282), (27, 4749584), (28, 4579956), (36, 3562188), (42, 3053304), (48, 2671641), (54, 2374792), (56, 2289978), (63, 2035536), (72, 1781094), (84, 1526652), (108, 1187396), (112, 1144989), (126, 1017768), (144, 890547), (168, 763326), (189, 678512), (216, 593698), (252, 508884), (336, 381663), (378, 339256), (432, 296849), (504, 254442), (756, 169628), (1008, 127221), (1512, 84814), (3024, 42407)]

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