About the Number

128438128

128438127 ← → 128438129

2進数表記:111101001111100111101110000

漢数字表記:一億二千八百四十三万八千百二十八

素因数分解:

2 4 × 7 1 × 13 1 × 17 1 × 5189 1

素因数の和:5234
約数の個数: 80
約数和(自身を含む): 324354240
約数和(自身を除く): 195916112

約数列:
[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 34, 52, 56, 68, 91, 104, 112, 119, 136, 182, 208, 221, 238, 272, 364, 442, 476, 728, 884, 952, 1456, 1547, 1768, 1904, 3094, 3536, 5189, 6188, 10378, 12376, 20756, 24752, 36323, 41512, 67457, 72646, 83024, 88213, 134914, 145292, 176426, 269828, 290584, 352852, 472199, 539656, 581168, 617491, 705704, 944398, 1079312, 1146769, 1234982, 1411408, 1888796, 2293538, 2469964, 3777592, 4587076, 4939928, 7555184, 8027383, 9174152, 9879856, 16054766, 18348304, 32109532, 64219064, 128438128]

約数ペア:
[(1, 128438128), (2, 64219064), (4, 32109532), (7, 18348304), (8, 16054766), (13, 9879856), (14, 9174152), (16, 8027383), (17, 7555184), (26, 4939928), (28, 4587076), (34, 3777592), (52, 2469964), (56, 2293538), (68, 1888796), (91, 1411408), (104, 1234982), (112, 1146769), (119, 1079312), (136, 944398), (182, 705704), (208, 617491), (221, 581168), (238, 539656), (272, 472199), (364, 352852), (442, 290584), (476, 269828), (728, 176426), (884, 145292), (952, 134914), (1456, 88213), (1547, 83024), (1768, 72646), (1904, 67457), (3094, 41512), (3536, 36323), (5189, 24752), (6188, 20756), (10378, 12376)]

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