About the Number

27980400

27980399 ← → 27980401

2進数表記:1101010101111001001110000

漢数字表記:二千七百九十八万四百

素因数分解:

2 4 × 3 1 × 5 2 × 7 1 × 3331 1

素因数の和:3359
約数の個数: 120
約数和(自身を含む): 102465664
約数和(自身を除く): 74485264

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 35, 40, 42, 48, 50, 56, 60, 70, 75, 80, 84, 100, 105, 112, 120, 140, 150, 168, 175, 200, 210, 240, 280, 300, 336, 350, 400, 420, 525, 560, 600, 700, 840, 1050, 1200, 1400, 1680, 2100, 2800, 3331, 4200, 6662, 8400, 9993, 13324, 16655, 19986, 23317, 26648, 33310, 39972, 46634, 49965, 53296, 66620, 69951, 79944, 83275, 93268, 99930, 116585, 133240, 139902, 159888, 166550, 186536, 199860, 233170, 249825, 266480, 279804, 333100, 349755, 373072, 399720, 466340, 499650, 559608, 582925, 666200, 699510, 799440, 932680, 999300, 1119216, 1165850, 1332400, 1399020, 1748775, 1865360, 1998600, 2331700, 2798040, 3497550, 3997200, 4663400, 5596080, 6995100, 9326800, 13990200, 27980400]

約数ペア:
[(1, 27980400), (2, 13990200), (3, 9326800), (4, 6995100), (5, 5596080), (6, 4663400), (7, 3997200), (8, 3497550), (10, 2798040), (12, 2331700), (14, 1998600), (15, 1865360), (16, 1748775), (20, 1399020), (21, 1332400), (24, 1165850), (25, 1119216), (28, 999300), (30, 932680), (35, 799440), (40, 699510), (42, 666200), (48, 582925), (50, 559608), (56, 499650), (60, 466340), (70, 399720), (75, 373072), (80, 349755), (84, 333100), (100, 279804), (105, 266480), (112, 249825), (120, 233170), (140, 199860), (150, 186536), (168, 166550), (175, 159888), (200, 139902), (210, 133240), (240, 116585), (280, 99930), (300, 93268), (336, 83275), (350, 79944), (400, 69951), (420, 66620), (525, 53296), (560, 49965), (600, 46634), (700, 39972), (840, 33310), (1050, 26648), (1200, 23317), (1400, 19986), (1680, 16655), (2100, 13324), (2800, 9993), (3331, 8400), (4200, 6662)]

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