About the Number

42155980

42155979 ← → 42155981

2進数表記:10100000110011111111001100

漢数字表記:四千二百十五万五千九百八十

素因数分解:

2 2 × 5 1 × 79 1 × 26681 1

素因数の和:26769
約数の個数: 24
約数和(自身を含む): 89651520
約数和(自身を除く): 47495540

約数列:
[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 26681, 53362, 106724, 133405, 266810, 533620, 2107799, 4215598, 8431196, 10538995, 21077990, 42155980]

約数ペア:
[(1, 42155980), (2, 21077990), (4, 10538995), (5, 8431196), (10, 4215598), (20, 2107799), (79, 533620), (158, 266810), (316, 133405), (395, 106724), (790, 53362), (1580, 26681)]

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