About the Number

21680960

21680959 ← → 21680961

2進数表記:1010010101101001101000000

漢数字表記:二千百六十八万九百六十

素因数分解:

2 6 × 5 1 × 7 1 × 9679 1

素因数の和:9703
約数の個数: 56
約数和(自身を含む): 59009280
約数和(自身を除く): 37328320

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 9679, 19358, 38716, 48395, 67753, 77432, 96790, 135506, 154864, 193580, 271012, 309728, 338765, 387160, 542024, 619456, 677530, 774320, 1084048, 1355060, 1548640, 2168096, 2710120, 3097280, 4336192, 5420240, 10840480, 21680960]

約数ペア:
[(1, 21680960), (2, 10840480), (4, 5420240), (5, 4336192), (7, 3097280), (8, 2710120), (10, 2168096), (14, 1548640), (16, 1355060), (20, 1084048), (28, 774320), (32, 677530), (35, 619456), (40, 542024), (56, 387160), (64, 338765), (70, 309728), (80, 271012), (112, 193580), (140, 154864), (160, 135506), (224, 96790), (280, 77432), (320, 67753), (448, 48395), (560, 38716), (1120, 19358), (2240, 9679)]

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