About the Number

80991012

80991011 ← → 80991013

2進数表記:100110100111101001100100100

漢数字表記:八千九十九万千十二

素因数分解:

2 2 × 3 1 × 131 1 × 51521 1

素因数の和:51659
約数の個数: 24
約数和(自身を含む): 190425312
約数和(自身を除く): 109434300

約数列:
[1, 2, 3, 4, 6, 12, 131, 262, 393, 524, 786, 1572, 51521, 103042, 154563, 206084, 309126, 618252, 6749251, 13498502, 20247753, 26997004, 40495506, 80991012]

約数ペア:
[(1, 80991012), (2, 40495506), (3, 26997004), (4, 20247753), (6, 13498502), (12, 6749251), (131, 618252), (262, 309126), (393, 206084), (524, 154563), (786, 103042), (1572, 51521)]

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