About the Number

128855040

128855039 ← → 128855041

2進数表記:111101011100010110000000000

漢数字表記:一億二千八百八十五万五千四十

素因数分解:

2 10 × 3 1 × 5 1 × 8389 1

素因数の和:8417
約数の個数: 88
約数和(自身を含む): 412183920
約数和(自身を除く): 283328880

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, 1024, 1280, 1536, 1920, 2560, 3072, 3840, 5120, 7680, 8389, 15360, 16778, 25167, 33556, 41945, 50334, 67112, 83890, 100668, 125835, 134224, 167780, 201336, 251670, 268448, 335560, 402672, 503340, 536896, 671120, 805344, 1006680, 1073792, 1342240, 1610688, 2013360, 2147584, 2684480, 3221376, 4026720, 4295168, 5368960, 6442752, 8053440, 8590336, 10737920, 12885504, 16106880, 21475840, 25771008, 32213760, 42951680, 64427520, 128855040]

約数ペア:
[(1, 128855040), (2, 64427520), (3, 42951680), (4, 32213760), (5, 25771008), (6, 21475840), (8, 16106880), (10, 12885504), (12, 10737920), (15, 8590336), (16, 8053440), (20, 6442752), (24, 5368960), (30, 4295168), (32, 4026720), (40, 3221376), (48, 2684480), (60, 2147584), (64, 2013360), (80, 1610688), (96, 1342240), (120, 1073792), (128, 1006680), (160, 805344), (192, 671120), (240, 536896), (256, 503340), (320, 402672), (384, 335560), (480, 268448), (512, 251670), (640, 201336), (768, 167780), (960, 134224), (1024, 125835), (1280, 100668), (1536, 83890), (1920, 67112), (2560, 50334), (3072, 41945), (3840, 33556), (5120, 25167), (7680, 16778), (8389, 15360)]

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