About the Number

12690720

12690719 ← → 12690721

2進数表記:110000011010010100100000

漢数字表記:千二百六十九万七百二十

素因数分解:

2 5 × 3 2 × 5 1 × 7 1 × 1259 1

素因数の和:1287
約数の個数: 144
約数和(自身を含む): 49533120
約数和(自身を除く): 36842400

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1259, 1260, 1440, 1680, 2016, 2518, 2520, 3360, 3777, 5036, 5040, 6295, 7554, 8813, 10072, 10080, 11331, 12590, 15108, 17626, 18885, 20144, 22662, 25180, 26439, 30216, 35252, 37770, 40288, 44065, 45324, 50360, 52878, 56655, 60432, 70504, 75540, 79317, 88130, 90648, 100720, 105756, 113310, 120864, 132195, 141008, 151080, 158634, 176260, 181296, 201440, 211512, 226620, 264390, 282016, 302160, 317268, 352520, 362592, 396585, 423024, 453240, 528780, 604320, 634536, 705040, 793170, 846048, 906480, 1057560, 1269072, 1410080, 1586340, 1812960, 2115120, 2538144, 3172680, 4230240, 6345360, 12690720]

約数ペア:
[(1, 12690720), (2, 6345360), (3, 4230240), (4, 3172680), (5, 2538144), (6, 2115120), (7, 1812960), (8, 1586340), (9, 1410080), (10, 1269072), (12, 1057560), (14, 906480), (15, 846048), (16, 793170), (18, 705040), (20, 634536), (21, 604320), (24, 528780), (28, 453240), (30, 423024), (32, 396585), (35, 362592), (36, 352520), (40, 317268), (42, 302160), (45, 282016), (48, 264390), (56, 226620), (60, 211512), (63, 201440), (70, 181296), (72, 176260), (80, 158634), (84, 151080), (90, 141008), (96, 132195), (105, 120864), (112, 113310), (120, 105756), (126, 100720), (140, 90648), (144, 88130), (160, 79317), (168, 75540), (180, 70504), (210, 60432), (224, 56655), (240, 52878), (252, 50360), (280, 45324), (288, 44065), (315, 40288), (336, 37770), (360, 35252), (420, 30216), (480, 26439), (504, 25180), (560, 22662), (630, 20144), (672, 18885), (720, 17626), (840, 15108), (1008, 12590), (1120, 11331), (1259, 10080), (1260, 10072), (1440, 8813), (1680, 7554), (2016, 6295), (2518, 5040), (2520, 5036), (3360, 3777)]

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