About the Number

201991125

201991124 ← → 201991126

2進数表記:1100000010100010001111010101

漢数字表記:二億百九十九万千百二十五

素因数分解:

3 1 × 5 3 × 7 1 × 76949 1

素因数の和:76974
約数の個数: 32
約数和(自身を含む): 384134400
約数和(自身を除く): 182143275

約数列:
[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 125, 175, 375, 525, 875, 2625, 76949, 230847, 384745, 538643, 1154235, 1615929, 1923725, 2693215, 5771175, 8079645, 9618625, 13466075, 28855875, 40398225, 67330375, 201991125]

約数ペア:
[(1, 201991125), (3, 67330375), (5, 40398225), (7, 28855875), (15, 13466075), (21, 9618625), (25, 8079645), (35, 5771175), (75, 2693215), (105, 1923725), (125, 1615929), (175, 1154235), (375, 538643), (525, 384745), (875, 230847), (2625, 76949)]

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