About the Number

12985440

12985439 ← → 12985441

2進数表記:110001100010010001100000

漢数字表記:千二百九十八万五千四百四十

素因数分解:

2 5 × 3 1 × 5 1 × 13 1 × 2081 1

素因数の和:2112
約数の個数: 96
約数和(自身を含む): 44071776
約数和(自身を除く): 31086336

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, 65, 78, 80, 96, 104, 120, 130, 156, 160, 195, 208, 240, 260, 312, 390, 416, 480, 520, 624, 780, 1040, 1248, 1560, 2080, 2081, 3120, 4162, 6240, 6243, 8324, 10405, 12486, 16648, 20810, 24972, 27053, 31215, 33296, 41620, 49944, 54106, 62430, 66592, 81159, 83240, 99888, 108212, 124860, 135265, 162318, 166480, 199776, 216424, 249720, 270530, 324636, 332960, 405795, 432848, 499440, 541060, 649272, 811590, 865696, 998880, 1082120, 1298544, 1623180, 2164240, 2597088, 3246360, 4328480, 6492720, 12985440]

約数ペア:
[(1, 12985440), (2, 6492720), (3, 4328480), (4, 3246360), (5, 2597088), (6, 2164240), (8, 1623180), (10, 1298544), (12, 1082120), (13, 998880), (15, 865696), (16, 811590), (20, 649272), (24, 541060), (26, 499440), (30, 432848), (32, 405795), (39, 332960), (40, 324636), (48, 270530), (52, 249720), (60, 216424), (65, 199776), (78, 166480), (80, 162318), (96, 135265), (104, 124860), (120, 108212), (130, 99888), (156, 83240), (160, 81159), (195, 66592), (208, 62430), (240, 54106), (260, 49944), (312, 41620), (390, 33296), (416, 31215), (480, 27053), (520, 24972), (624, 20810), (780, 16648), (1040, 12486), (1248, 10405), (1560, 8324), (2080, 6243), (2081, 6240), (3120, 4162)]

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