About the Number

12990400

12990399 ← → 12990401

2進数表記:110001100011011111000000

漢数字表記:千二百九十九万四百

素因数分解:

2 6 × 5 2 × 23 1 × 353 1

素因数の和:398
約数の個数: 84
約数和(自身を含む): 33448752
約数和(自身を除く): 20458352

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 64, 80, 92, 100, 115, 160, 184, 200, 230, 320, 353, 368, 400, 460, 575, 706, 736, 800, 920, 1150, 1412, 1472, 1600, 1765, 1840, 2300, 2824, 3530, 3680, 4600, 5648, 7060, 7360, 8119, 8825, 9200, 11296, 14120, 16238, 17650, 18400, 22592, 28240, 32476, 35300, 36800, 40595, 56480, 64952, 70600, 81190, 112960, 129904, 141200, 162380, 202975, 259808, 282400, 324760, 405950, 519616, 564800, 649520, 811900, 1299040, 1623800, 2598080, 3247600, 6495200, 12990400]

約数ペア:
[(1, 12990400), (2, 6495200), (4, 3247600), (5, 2598080), (8, 1623800), (10, 1299040), (16, 811900), (20, 649520), (23, 564800), (25, 519616), (32, 405950), (40, 324760), (46, 282400), (50, 259808), (64, 202975), (80, 162380), (92, 141200), (100, 129904), (115, 112960), (160, 81190), (184, 70600), (200, 64952), (230, 56480), (320, 40595), (353, 36800), (368, 35300), (400, 32476), (460, 28240), (575, 22592), (706, 18400), (736, 17650), (800, 16238), (920, 14120), (1150, 11296), (1412, 9200), (1472, 8825), (1600, 8119), (1765, 7360), (1840, 7060), (2300, 5648), (2824, 4600), (3530, 3680)]

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