About the Number

207840640

207840639 ← → 207840641

2進数表記:1100011000110110010110000000

漢数字表記:二億七百八十四万六百四十

素因数分解:

2 7 × 5 1 × 7 1 × 17 1 × 2729 1

素因数の和:2772
約数の個数: 128
約数和(自身を含む): 601473600
約数和(自身を除く): 393632960

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 56, 64, 68, 70, 80, 85, 112, 119, 128, 136, 140, 160, 170, 224, 238, 272, 280, 320, 340, 448, 476, 544, 560, 595, 640, 680, 896, 952, 1088, 1120, 1190, 1360, 1904, 2176, 2240, 2380, 2720, 2729, 3808, 4480, 4760, 5440, 5458, 7616, 9520, 10880, 10916, 13645, 15232, 19040, 19103, 21832, 27290, 38080, 38206, 43664, 46393, 54580, 76160, 76412, 87328, 92786, 95515, 109160, 152824, 174656, 185572, 191030, 218320, 231965, 305648, 324751, 349312, 371144, 382060, 436640, 463930, 611296, 649502, 742288, 764120, 873280, 927860, 1222592, 1299004, 1484576, 1528240, 1623755, 1746560, 1855720, 2445184, 2598008, 2969152, 3056480, 3247510, 3711440, 5196016, 5938304, 6112960, 6495020, 7422880, 10392032, 12225920, 12990040, 14845760, 20784064, 25980080, 29691520, 41568128, 51960160, 103920320, 207840640]

約数ペア:
[(1, 207840640), (2, 103920320), (4, 51960160), (5, 41568128), (7, 29691520), (8, 25980080), (10, 20784064), (14, 14845760), (16, 12990040), (17, 12225920), (20, 10392032), (28, 7422880), (32, 6495020), (34, 6112960), (35, 5938304), (40, 5196016), (56, 3711440), (64, 3247510), (68, 3056480), (70, 2969152), (80, 2598008), (85, 2445184), (112, 1855720), (119, 1746560), (128, 1623755), (136, 1528240), (140, 1484576), (160, 1299004), (170, 1222592), (224, 927860), (238, 873280), (272, 764120), (280, 742288), (320, 649502), (340, 611296), (448, 463930), (476, 436640), (544, 382060), (560, 371144), (595, 349312), (640, 324751), (680, 305648), (896, 231965), (952, 218320), (1088, 191030), (1120, 185572), (1190, 174656), (1360, 152824), (1904, 109160), (2176, 95515), (2240, 92786), (2380, 87328), (2720, 76412), (2729, 76160), (3808, 54580), (4480, 46393), (4760, 43664), (5440, 38206), (5458, 38080), (7616, 27290), (9520, 21832), (10880, 19103), (10916, 19040), (13645, 15232)]

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