About the Number

31213080

31213079 ← → 31213081

2進数表記:1110111000100011000011000

漢数字表記:三千百二十一万三千八十

素因数分解:

2 3 × 3 3 × 5 1 × 28901 1

素因数の和:28921
約数の個数: 64
約数和(自身を含む): 104047200
約数和(自身を除く): 72834120

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 28901, 57802, 86703, 115604, 144505, 173406, 231208, 260109, 289010, 346812, 433515, 520218, 578020, 693624, 780327, 867030, 1040436, 1156040, 1300545, 1560654, 1734060, 2080872, 2601090, 3121308, 3468120, 3901635, 5202180, 6242616, 7803270, 10404360, 15606540, 31213080]

約数ペア:
[(1, 31213080), (2, 15606540), (3, 10404360), (4, 7803270), (5, 6242616), (6, 5202180), (8, 3901635), (9, 3468120), (10, 3121308), (12, 2601090), (15, 2080872), (18, 1734060), (20, 1560654), (24, 1300545), (27, 1156040), (30, 1040436), (36, 867030), (40, 780327), (45, 693624), (54, 578020), (60, 520218), (72, 433515), (90, 346812), (108, 289010), (120, 260109), (135, 231208), (180, 173406), (216, 144505), (270, 115604), (360, 86703), (540, 57802), (1080, 28901)]

このpageの処理時間: 0.004908561706542969 seconds