About the Number

81428040

81428039 ← → 81428041

2進数表記:100110110100111111001001000

漢数字表記:八千百四十二万八千四十

素因数分解:

2 3 × 3 2 × 5 1 × 226189 1

素因数の和:226206
約数の個数: 48
約数和(自身を含む): 264642300
約数和(自身を除く): 183214260

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 226189, 452378, 678567, 904756, 1130945, 1357134, 1809512, 2035701, 2261890, 2714268, 3392835, 4071402, 4523780, 5428536, 6785670, 8142804, 9047560, 10178505, 13571340, 16285608, 20357010, 27142680, 40714020, 81428040]

約数ペア:
[(1, 81428040), (2, 40714020), (3, 27142680), (4, 20357010), (5, 16285608), (6, 13571340), (8, 10178505), (9, 9047560), (10, 8142804), (12, 6785670), (15, 5428536), (18, 4523780), (20, 4071402), (24, 3392835), (30, 2714268), (36, 2261890), (40, 2035701), (45, 1809512), (60, 1357134), (72, 1130945), (90, 904756), (120, 678567), (180, 452378), (360, 226189)]

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