About the Number

127428640

127428639 ← → 127428641

2進数表記:111100110000110100000100000

漢数字表記:一億二千七百四十二万八千六百四十

素因数分解:

2 5 × 5 1 × 67 1 × 11887 1

素因数の和:11969
約数の個数: 48
約数和(自身を含む): 305569152
約数和(自身を除く): 178140512

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 67, 80, 134, 160, 268, 335, 536, 670, 1072, 1340, 2144, 2680, 5360, 10720, 11887, 23774, 47548, 59435, 95096, 118870, 190192, 237740, 380384, 475480, 796429, 950960, 1592858, 1901920, 3185716, 3982145, 6371432, 7964290, 12742864, 15928580, 25485728, 31857160, 63714320, 127428640]

約数ペア:
[(1, 127428640), (2, 63714320), (4, 31857160), (5, 25485728), (8, 15928580), (10, 12742864), (16, 7964290), (20, 6371432), (32, 3982145), (40, 3185716), (67, 1901920), (80, 1592858), (134, 950960), (160, 796429), (268, 475480), (335, 380384), (536, 237740), (670, 190192), (1072, 118870), (1340, 95096), (2144, 59435), (2680, 47548), (5360, 23774), (10720, 11887)]

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