About the Number

81422690

81422689 ← → 81422691

2進数表記:100110110100110100101100010

漢数字表記:八千百四十二万二千六百九十

素因数分解:

2 1 × 5 1 × 17 1 × 331 1 × 1447 1

素因数の和:1802
約数の個数: 32
約数和(自身を含む): 155758464
約数和(自身を除く): 74335774

約数列:
[1, 2, 5, 10, 17, 34, 85, 170, 331, 662, 1447, 1655, 2894, 3310, 5627, 7235, 11254, 14470, 24599, 28135, 49198, 56270, 122995, 245990, 478957, 957914, 2394785, 4789570, 8142269, 16284538, 40711345, 81422690]

約数ペア:
[(1, 81422690), (2, 40711345), (5, 16284538), (10, 8142269), (17, 4789570), (34, 2394785), (85, 957914), (170, 478957), (331, 245990), (662, 122995), (1447, 56270), (1655, 49198), (2894, 28135), (3310, 24599), (5627, 14470), (7235, 11254)]

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