About the Number

207742990

207742989 ← → 207742991

2進数表記:1100011000011110100000001110

漢数字表記:二億七百七十四万二千九百九十

素因数分解:

2 1 × 5 1 × 7 1 × 13 1 × 167 1 × 1367 1

素因数の和:1561
約数の個数: 64
約数和(自身を含む): 463325184
約数和(自身を除く): 255582194

約数列:
[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 167, 182, 334, 455, 835, 910, 1169, 1367, 1670, 2171, 2338, 2734, 4342, 5845, 6835, 9569, 10855, 11690, 13670, 15197, 17771, 19138, 21710, 30394, 35542, 47845, 75985, 88855, 95690, 124397, 151970, 177710, 228289, 248794, 456578, 621985, 1141445, 1243970, 1598023, 2282890, 2967757, 3196046, 5935514, 7990115, 14838785, 15980230, 20774299, 29677570, 41548598, 103871495, 207742990]

約数ペア:
[(1, 207742990), (2, 103871495), (5, 41548598), (7, 29677570), (10, 20774299), (13, 15980230), (14, 14838785), (26, 7990115), (35, 5935514), (65, 3196046), (70, 2967757), (91, 2282890), (130, 1598023), (167, 1243970), (182, 1141445), (334, 621985), (455, 456578), (835, 248794), (910, 228289), (1169, 177710), (1367, 151970), (1670, 124397), (2171, 95690), (2338, 88855), (2734, 75985), (4342, 47845), (5845, 35542), (6835, 30394), (9569, 21710), (10855, 19138), (11690, 17771), (13670, 15197)]

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