About the Number

381004880

381004879 ← → 381004881

2進数表記:10110101101011010110001010000

漢数字表記:三億八千百万四千八百八十

素因数分解:

2 4 × 5 1 × 31 1 × 67 1 × 2293 1

素因数の和:2404
約数の個数: 80
約数和(自身を含む): 928464384
約数和(自身を除く): 547459504

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 67, 80, 124, 134, 155, 248, 268, 310, 335, 496, 536, 620, 670, 1072, 1240, 1340, 2077, 2293, 2480, 2680, 4154, 4586, 5360, 8308, 9172, 10385, 11465, 16616, 18344, 20770, 22930, 33232, 36688, 41540, 45860, 71083, 83080, 91720, 142166, 153631, 166160, 183440, 284332, 307262, 355415, 568664, 614524, 710830, 768155, 1137328, 1229048, 1421660, 1536310, 2458096, 2843320, 3072620, 4762561, 5686640, 6145240, 9525122, 12290480, 19050244, 23812805, 38100488, 47625610, 76200976, 95251220, 190502440, 381004880]

約数ペア:
[(1, 381004880), (2, 190502440), (4, 95251220), (5, 76200976), (8, 47625610), (10, 38100488), (16, 23812805), (20, 19050244), (31, 12290480), (40, 9525122), (62, 6145240), (67, 5686640), (80, 4762561), (124, 3072620), (134, 2843320), (155, 2458096), (248, 1536310), (268, 1421660), (310, 1229048), (335, 1137328), (496, 768155), (536, 710830), (620, 614524), (670, 568664), (1072, 355415), (1240, 307262), (1340, 284332), (2077, 183440), (2293, 166160), (2480, 153631), (2680, 142166), (4154, 91720), (4586, 83080), (5360, 71083), (8308, 45860), (9172, 41540), (10385, 36688), (11465, 33232), (16616, 22930), (18344, 20770)]

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