About the Number

11003980

11003979 ← → 11003981

2進数表記:101001111110100001001100

漢数字表記:千百万三千九百八十

素因数分解:

2 2 × 5 1 × 13 1 × 42323 1

素因数の和:42345
約数の個数: 24
約数和(自身を含む): 24886512
約数和(自身を除く): 13882532

約数列:
[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 42323, 84646, 169292, 211615, 423230, 550199, 846460, 1100398, 2200796, 2750995, 5501990, 11003980]

約数ペア:
[(1, 11003980), (2, 5501990), (4, 2750995), (5, 2200796), (10, 1100398), (13, 846460), (20, 550199), (26, 423230), (52, 211615), (65, 169292), (130, 84646), (260, 42323)]

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