About the Number

81040128

81040127 ← → 81040129

2進数表記:100110101001001001100000000

漢数字表記:八千百四万百二十八

素因数分解:

2 8 × 3 1 × 13 1 × 8117 1

素因数の和:8149
約数の個数: 72
約数和(自身を含む): 232304688
約数和(自身を除く): 151264560

約数列:
[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 128, 156, 192, 208, 256, 312, 384, 416, 624, 768, 832, 1248, 1664, 2496, 3328, 4992, 8117, 9984, 16234, 24351, 32468, 48702, 64936, 97404, 105521, 129872, 194808, 211042, 259744, 316563, 389616, 422084, 519488, 633126, 779232, 844168, 1038976, 1266252, 1558464, 1688336, 2077952, 2532504, 3116928, 3376672, 5065008, 6233856, 6753344, 10130016, 13506688, 20260032, 27013376, 40520064, 81040128]

約数ペア:
[(1, 81040128), (2, 40520064), (3, 27013376), (4, 20260032), (6, 13506688), (8, 10130016), (12, 6753344), (13, 6233856), (16, 5065008), (24, 3376672), (26, 3116928), (32, 2532504), (39, 2077952), (48, 1688336), (52, 1558464), (64, 1266252), (78, 1038976), (96, 844168), (104, 779232), (128, 633126), (156, 519488), (192, 422084), (208, 389616), (256, 316563), (312, 259744), (384, 211042), (416, 194808), (624, 129872), (768, 105521), (832, 97404), (1248, 64936), (1664, 48702), (2496, 32468), (3328, 24351), (4992, 16234), (8117, 9984)]

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