About the Number

81449172

81449171 ← → 81449173

2進数表記:100110110101101000011010100

漢数字表記:八千百四十四万九千百七十二

素因数分解:

2 2 × 3 3 × 7 2 × 15391 1

素因数の和:15418
約数の個数: 72
約数和(自身を含む): 245656320
約数和(自身を除く): 164207148

約数列:
[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 84, 98, 108, 126, 147, 189, 196, 252, 294, 378, 441, 588, 756, 882, 1323, 1764, 2646, 5292, 15391, 30782, 46173, 61564, 92346, 107737, 138519, 184692, 215474, 277038, 323211, 415557, 430948, 554076, 646422, 754159, 831114, 969633, 1292844, 1508318, 1662228, 1939266, 2262477, 2908899, 3016636, 3878532, 4524954, 5817798, 6787431, 9049908, 11635596, 13574862, 20362293, 27149724, 40724586, 81449172]

約数ペア:
[(1, 81449172), (2, 40724586), (3, 27149724), (4, 20362293), (6, 13574862), (7, 11635596), (9, 9049908), (12, 6787431), (14, 5817798), (18, 4524954), (21, 3878532), (27, 3016636), (28, 2908899), (36, 2262477), (42, 1939266), (49, 1662228), (54, 1508318), (63, 1292844), (84, 969633), (98, 831114), (108, 754159), (126, 646422), (147, 554076), (189, 430948), (196, 415557), (252, 323211), (294, 277038), (378, 215474), (441, 184692), (588, 138519), (756, 107737), (882, 92346), (1323, 61564), (1764, 46173), (2646, 30782), (5292, 15391)]

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