About the Number

128930880

128930879 ← → 128930881

2進数表記:111101011110101010001000000

漢数字表記:一億二千八百九十三万八百八十

素因数分解:

2 6 × 3 1 × 5 1 × 13 1 × 10331 1

素因数の和:10364
約数の個数: 112
約数和(自身を含む): 440887104
約数和(自身を除く): 311956224

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 390, 416, 480, 520, 624, 780, 832, 960, 1040, 1248, 1560, 2080, 2496, 3120, 4160, 6240, 10331, 12480, 20662, 30993, 41324, 51655, 61986, 82648, 103310, 123972, 134303, 154965, 165296, 206620, 247944, 268606, 309930, 330592, 402909, 413240, 495888, 537212, 619860, 661184, 671515, 805818, 826480, 991776, 1074424, 1239720, 1343030, 1611636, 1652960, 1983552, 2014545, 2148848, 2479440, 2686060, 3223272, 3305920, 4029090, 4297696, 4958880, 5372120, 6446544, 8058180, 8595392, 9917760, 10744240, 12893088, 16116360, 21488480, 25786176, 32232720, 42976960, 64465440, 128930880]

約数ペア:
[(1, 128930880), (2, 64465440), (3, 42976960), (4, 32232720), (5, 25786176), (6, 21488480), (8, 16116360), (10, 12893088), (12, 10744240), (13, 9917760), (15, 8595392), (16, 8058180), (20, 6446544), (24, 5372120), (26, 4958880), (30, 4297696), (32, 4029090), (39, 3305920), (40, 3223272), (48, 2686060), (52, 2479440), (60, 2148848), (64, 2014545), (65, 1983552), (78, 1652960), (80, 1611636), (96, 1343030), (104, 1239720), (120, 1074424), (130, 991776), (156, 826480), (160, 805818), (192, 671515), (195, 661184), (208, 619860), (240, 537212), (260, 495888), (312, 413240), (320, 402909), (390, 330592), (416, 309930), (480, 268606), (520, 247944), (624, 206620), (780, 165296), (832, 154965), (960, 134303), (1040, 123972), (1248, 103310), (1560, 82648), (2080, 61986), (2496, 51655), (3120, 41324), (4160, 30993), (6240, 20662), (10331, 12480)]

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