About the Number

123280

123279 ← → 123281

2進数表記:11110000110010000

漢数字表記:十二万三千二百八十

素因数分解:

2 4 × 5 1 × 23 1 × 67 1

素因数の和:103
約数の個数: 40
約数和(自身を含む): 303552
約数和(自身を除く): 180272

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 67, 80, 92, 115, 134, 184, 230, 268, 335, 368, 460, 536, 670, 920, 1072, 1340, 1541, 1840, 2680, 3082, 5360, 6164, 7705, 12328, 15410, 24656, 30820, 61640, 123280]

約数ペア:
[(1, 123280), (2, 61640), (4, 30820), (5, 24656), (8, 15410), (10, 12328), (16, 7705), (20, 6164), (23, 5360), (40, 3082), (46, 2680), (67, 1840), (80, 1541), (92, 1340), (115, 1072), (134, 920), (184, 670), (230, 536), (268, 460), (335, 368)]

このpageの処理時間: 0.004235744476318359 seconds