About the Number

12821520

12821519 ← → 12821521

2進数表記:110000111010010000010000

漢数字表記:千二百八十二万千五百二十

素因数分解:

2 4 × 3 1 × 5 1 × 41 1 × 1303 1

素因数の和:1360
約数の個数: 80
約数和(自身を含む): 40747392
約数和(自身を除く): 27925872

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 41, 48, 60, 80, 82, 120, 123, 164, 205, 240, 246, 328, 410, 492, 615, 656, 820, 984, 1230, 1303, 1640, 1968, 2460, 2606, 3280, 3909, 4920, 5212, 6515, 7818, 9840, 10424, 13030, 15636, 19545, 20848, 26060, 31272, 39090, 52120, 53423, 62544, 78180, 104240, 106846, 156360, 160269, 213692, 267115, 312720, 320538, 427384, 534230, 641076, 801345, 854768, 1068460, 1282152, 1602690, 2136920, 2564304, 3205380, 4273840, 6410760, 12821520]

約数ペア:
[(1, 12821520), (2, 6410760), (3, 4273840), (4, 3205380), (5, 2564304), (6, 2136920), (8, 1602690), (10, 1282152), (12, 1068460), (15, 854768), (16, 801345), (20, 641076), (24, 534230), (30, 427384), (40, 320538), (41, 312720), (48, 267115), (60, 213692), (80, 160269), (82, 156360), (120, 106846), (123, 104240), (164, 78180), (205, 62544), (240, 53423), (246, 52120), (328, 39090), (410, 31272), (492, 26060), (615, 20848), (656, 19545), (820, 15636), (984, 13030), (1230, 10424), (1303, 9840), (1640, 7818), (1968, 6515), (2460, 5212), (2606, 4920), (3280, 3909)]

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