About the Number

1991103675

1991103674 ← → 1991103676

2進数表記:1110110101011011101010010111011

漢数字表記:十九億九千百十万三千六百七十五

素因数分解:

3 1 × 5 2 × 11 1 × 23 1 × 104933 1

素因数の和:104980
約数の個数: 48
約数和(自身を含む): 3747403008
約数和(自身を除く): 1756299333

約数列:
[1, 3, 5, 11, 15, 23, 25, 33, 55, 69, 75, 115, 165, 253, 275, 345, 575, 759, 825, 1265, 1725, 3795, 6325, 18975, 104933, 314799, 524665, 1154263, 1573995, 2413459, 2623325, 3462789, 5771315, 7240377, 7869975, 12067295, 17313945, 26548049, 28856575, 36201885, 60336475, 79644147, 86569725, 132740245, 181009425, 398220735, 663701225, 1991103675]

約数ペア:
[(1, 1991103675), (3, 663701225), (5, 398220735), (11, 181009425), (15, 132740245), (23, 86569725), (25, 79644147), (33, 60336475), (55, 36201885), (69, 28856575), (75, 26548049), (115, 17313945), (165, 12067295), (253, 7869975), (275, 7240377), (345, 5771315), (575, 3462789), (759, 2623325), (825, 2413459), (1265, 1573995), (1725, 1154263), (3795, 524665), (6325, 314799), (18975, 104933)]

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