About the Number

81712128

81712127 ← → 81712129

2進数表記:100110111101101010000000000

漢数字表記:八千百七十一万二千百二十八

素因数分解:

2 10 × 3 1 × 67 1 × 397 1

素因数の和:487
約数の個数: 88
約数和(自身を含む): 221600032
約数和(自身を除く): 139887904

約数列:
[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 67, 96, 128, 134, 192, 201, 256, 268, 384, 397, 402, 512, 536, 768, 794, 804, 1024, 1072, 1191, 1536, 1588, 1608, 2144, 2382, 3072, 3176, 3216, 4288, 4764, 6352, 6432, 8576, 9528, 12704, 12864, 17152, 19056, 25408, 25728, 26599, 34304, 38112, 50816, 51456, 53198, 68608, 76224, 79797, 101632, 102912, 106396, 152448, 159594, 203264, 205824, 212792, 304896, 319188, 406528, 425584, 609792, 638376, 851168, 1219584, 1276752, 1702336, 2553504, 3404672, 5107008, 6809344, 10214016, 13618688, 20428032, 27237376, 40856064, 81712128]

約数ペア:
[(1, 81712128), (2, 40856064), (3, 27237376), (4, 20428032), (6, 13618688), (8, 10214016), (12, 6809344), (16, 5107008), (24, 3404672), (32, 2553504), (48, 1702336), (64, 1276752), (67, 1219584), (96, 851168), (128, 638376), (134, 609792), (192, 425584), (201, 406528), (256, 319188), (268, 304896), (384, 212792), (397, 205824), (402, 203264), (512, 159594), (536, 152448), (768, 106396), (794, 102912), (804, 101632), (1024, 79797), (1072, 76224), (1191, 68608), (1536, 53198), (1588, 51456), (1608, 50816), (2144, 38112), (2382, 34304), (3072, 26599), (3176, 25728), (3216, 25408), (4288, 19056), (4764, 17152), (6352, 12864), (6432, 12704), (8576, 9528)]

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