About the Number

1243280080

1243280079 ← → 1243280081

2進数表記:1001010000110101111001011010000

漢数字表記:十二億四千三百二十八万八十

素因数分解:

2 4 × 5 1 × 7 1 × 107 1 × 20749 1

素因数の和:20876
約数の個数: 80
約数和(自身を含む): 3334608000
約数和(自身を除く): 2091327920

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 107, 112, 140, 214, 280, 428, 535, 560, 749, 856, 1070, 1498, 1712, 2140, 2996, 3745, 4280, 5992, 7490, 8560, 11984, 14980, 20749, 29960, 41498, 59920, 82996, 103745, 145243, 165992, 207490, 290486, 331984, 414980, 580972, 726215, 829960, 1161944, 1452430, 1659920, 2220143, 2323888, 2904860, 4440286, 5809720, 8880572, 11100715, 11619440, 15541001, 17761144, 22201430, 31082002, 35522288, 44402860, 62164004, 77705005, 88805720, 124328008, 155410010, 177611440, 248656016, 310820020, 621640040, 1243280080]

約数ペア:
[(1, 1243280080), (2, 621640040), (4, 310820020), (5, 248656016), (7, 177611440), (8, 155410010), (10, 124328008), (14, 88805720), (16, 77705005), (20, 62164004), (28, 44402860), (35, 35522288), (40, 31082002), (56, 22201430), (70, 17761144), (80, 15541001), (107, 11619440), (112, 11100715), (140, 8880572), (214, 5809720), (280, 4440286), (428, 2904860), (535, 2323888), (560, 2220143), (749, 1659920), (856, 1452430), (1070, 1161944), (1498, 829960), (1712, 726215), (2140, 580972), (2996, 414980), (3745, 331984), (4280, 290486), (5992, 207490), (7490, 165992), (8560, 145243), (11984, 103745), (14980, 82996), (20749, 59920), (29960, 41498)]

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