About the Number

123985920

123985919 ← → 123985921

2進数表記:111011000111110000000000000

漢数字表記:一億二千三百九十八万五千九百二十

素因数分解:

2 13 × 3 1 × 5 1 × 1009 1

素因数の和:1043
約数の個数: 112
約数和(自身を含む): 397123920
約数和(自身を除く): 273138000

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1009, 1024, 1280, 1536, 1920, 2018, 2048, 2560, 3027, 3072, 3840, 4036, 4096, 5045, 5120, 6054, 6144, 7680, 8072, 8192, 10090, 10240, 12108, 12288, 15135, 15360, 16144, 20180, 20480, 24216, 24576, 30270, 30720, 32288, 40360, 40960, 48432, 60540, 61440, 64576, 80720, 96864, 121080, 122880, 129152, 161440, 193728, 242160, 258304, 322880, 387456, 484320, 516608, 645760, 774912, 968640, 1033216, 1291520, 1549824, 1937280, 2066432, 2583040, 3099648, 3874560, 4132864, 5166080, 6199296, 7749120, 8265728, 10332160, 12398592, 15498240, 20664320, 24797184, 30996480, 41328640, 61992960, 123985920]

約数ペア:
[(1, 123985920), (2, 61992960), (3, 41328640), (4, 30996480), (5, 24797184), (6, 20664320), (8, 15498240), (10, 12398592), (12, 10332160), (15, 8265728), (16, 7749120), (20, 6199296), (24, 5166080), (30, 4132864), (32, 3874560), (40, 3099648), (48, 2583040), (60, 2066432), (64, 1937280), (80, 1549824), (96, 1291520), (120, 1033216), (128, 968640), (160, 774912), (192, 645760), (240, 516608), (256, 484320), (320, 387456), (384, 322880), (480, 258304), (512, 242160), (640, 193728), (768, 161440), (960, 129152), (1009, 122880), (1024, 121080), (1280, 96864), (1536, 80720), (1920, 64576), (2018, 61440), (2048, 60540), (2560, 48432), (3027, 40960), (3072, 40360), (3840, 32288), (4036, 30720), (4096, 30270), (5045, 24576), (5120, 24216), (6054, 20480), (6144, 20180), (7680, 16144), (8072, 15360), (8192, 15135), (10090, 12288), (10240, 12108)]

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