About the Number

21769680

21769679 ← → 21769681

2進数表記:1010011000010110111010000

漢数字表記:二千百七十六万九千六百八十

素因数分解:

2 4 × 3 1 × 5 1 × 61 1 × 1487 1

素因数の和:1564
約数の個数: 80
約数和(自身を含む): 68638464
約数和(自身を除く): 46868784

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 61, 80, 120, 122, 183, 240, 244, 305, 366, 488, 610, 732, 915, 976, 1220, 1464, 1487, 1830, 2440, 2928, 2974, 3660, 4461, 4880, 5948, 7320, 7435, 8922, 11896, 14640, 14870, 17844, 22305, 23792, 29740, 35688, 44610, 59480, 71376, 89220, 90707, 118960, 178440, 181414, 272121, 356880, 362828, 453535, 544242, 725656, 907070, 1088484, 1360605, 1451312, 1814140, 2176968, 2721210, 3628280, 4353936, 5442420, 7256560, 10884840, 21769680]

約数ペア:
[(1, 21769680), (2, 10884840), (3, 7256560), (4, 5442420), (5, 4353936), (6, 3628280), (8, 2721210), (10, 2176968), (12, 1814140), (15, 1451312), (16, 1360605), (20, 1088484), (24, 907070), (30, 725656), (40, 544242), (48, 453535), (60, 362828), (61, 356880), (80, 272121), (120, 181414), (122, 178440), (183, 118960), (240, 90707), (244, 89220), (305, 71376), (366, 59480), (488, 44610), (610, 35688), (732, 29740), (915, 23792), (976, 22305), (1220, 17844), (1464, 14870), (1487, 14640), (1830, 11896), (2440, 8922), (2928, 7435), (2974, 7320), (3660, 5948), (4461, 4880)]

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