About the Number

1021790

1021789 ← → 1021791

2進数表記:11111001011101011110

漢数字表記:百二万千七百九十

素因数分解:

2 1 × 5 1 × 7 1 × 11 1 × 1327 1

素因数の和:1352
約数の個数: 32
約数和(自身を含む): 2294784
約数和(自身を除く): 1272994

約数列:
[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 1327, 2654, 6635, 9289, 13270, 14597, 18578, 29194, 46445, 72985, 92890, 102179, 145970, 204358, 510895, 1021790]

約数ペア:
[(1, 1021790), (2, 510895), (5, 204358), (7, 145970), (10, 102179), (11, 92890), (14, 72985), (22, 46445), (35, 29194), (55, 18578), (70, 14597), (77, 13270), (110, 9289), (154, 6635), (385, 2654), (770, 1327)]

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