About the Number

138456720

138456719 ← → 138456721

2進数表記:1000010000001010111010010000

漢数字表記:一億三千八百四十五万六千七百二十

素因数分解:

2 4 × 3 2 × 5 1 × 103 1 × 1867 1

素因数の和:1989
約数の個数: 120
約数和(自身を含む): 469749696
約数和(自身を除く): 331292976

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 103, 120, 144, 180, 206, 240, 309, 360, 412, 515, 618, 720, 824, 927, 1030, 1236, 1545, 1648, 1854, 1867, 2060, 2472, 3090, 3708, 3734, 4120, 4635, 4944, 5601, 6180, 7416, 7468, 8240, 9270, 9335, 11202, 12360, 14832, 14936, 16803, 18540, 18670, 22404, 24720, 28005, 29872, 33606, 37080, 37340, 44808, 56010, 67212, 74160, 74680, 84015, 89616, 112020, 134424, 149360, 168030, 192301, 224040, 268848, 336060, 384602, 448080, 576903, 672120, 769204, 961505, 1153806, 1344240, 1538408, 1730709, 1923010, 2307612, 2884515, 3076816, 3461418, 3846020, 4615224, 5769030, 6922836, 7692040, 8653545, 9230448, 11538060, 13845672, 15384080, 17307090, 23076120, 27691344, 34614180, 46152240, 69228360, 138456720]

約数ペア:
[(1, 138456720), (2, 69228360), (3, 46152240), (4, 34614180), (5, 27691344), (6, 23076120), (8, 17307090), (9, 15384080), (10, 13845672), (12, 11538060), (15, 9230448), (16, 8653545), (18, 7692040), (20, 6922836), (24, 5769030), (30, 4615224), (36, 3846020), (40, 3461418), (45, 3076816), (48, 2884515), (60, 2307612), (72, 1923010), (80, 1730709), (90, 1538408), (103, 1344240), (120, 1153806), (144, 961505), (180, 769204), (206, 672120), (240, 576903), (309, 448080), (360, 384602), (412, 336060), (515, 268848), (618, 224040), (720, 192301), (824, 168030), (927, 149360), (1030, 134424), (1236, 112020), (1545, 89616), (1648, 84015), (1854, 74680), (1867, 74160), (2060, 67212), (2472, 56010), (3090, 44808), (3708, 37340), (3734, 37080), (4120, 33606), (4635, 29872), (4944, 28005), (5601, 24720), (6180, 22404), (7416, 18670), (7468, 18540), (8240, 16803), (9270, 14936), (9335, 14832), (11202, 12360)]

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