About the Number

12731520

12731519 ← → 12731521

2進数表記:110000100100010010000000

漢数字表記:千二百七十三万千五百二十

素因数分解:

2 7 × 3 1 × 5 1 × 19 1 × 349 1

素因数の和:390
約数の個数: 128
約数和(自身を含む): 42840000
約数和(自身を除く): 30108480

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 57, 60, 64, 76, 80, 95, 96, 114, 120, 128, 152, 160, 190, 192, 228, 240, 285, 304, 320, 349, 380, 384, 456, 480, 570, 608, 640, 698, 760, 912, 960, 1047, 1140, 1216, 1396, 1520, 1745, 1824, 1920, 2094, 2280, 2432, 2792, 3040, 3490, 3648, 4188, 4560, 5235, 5584, 6080, 6631, 6980, 7296, 8376, 9120, 10470, 11168, 12160, 13262, 13960, 16752, 18240, 19893, 20940, 22336, 26524, 27920, 33155, 33504, 36480, 39786, 41880, 44672, 53048, 55840, 66310, 67008, 79572, 83760, 99465, 106096, 111680, 132620, 134016, 159144, 167520, 198930, 212192, 223360, 265240, 318288, 335040, 397860, 424384, 530480, 636576, 670080, 795720, 848768, 1060960, 1273152, 1591440, 2121920, 2546304, 3182880, 4243840, 6365760, 12731520]

約数ペア:
[(1, 12731520), (2, 6365760), (3, 4243840), (4, 3182880), (5, 2546304), (6, 2121920), (8, 1591440), (10, 1273152), (12, 1060960), (15, 848768), (16, 795720), (19, 670080), (20, 636576), (24, 530480), (30, 424384), (32, 397860), (38, 335040), (40, 318288), (48, 265240), (57, 223360), (60, 212192), (64, 198930), (76, 167520), (80, 159144), (95, 134016), (96, 132620), (114, 111680), (120, 106096), (128, 99465), (152, 83760), (160, 79572), (190, 67008), (192, 66310), (228, 55840), (240, 53048), (285, 44672), (304, 41880), (320, 39786), (349, 36480), (380, 33504), (384, 33155), (456, 27920), (480, 26524), (570, 22336), (608, 20940), (640, 19893), (698, 18240), (760, 16752), (912, 13960), (960, 13262), (1047, 12160), (1140, 11168), (1216, 10470), (1396, 9120), (1520, 8376), (1745, 7296), (1824, 6980), (1920, 6631), (2094, 6080), (2280, 5584), (2432, 5235), (2792, 4560), (3040, 4188), (3490, 3648)]

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