About the Number

30121640

30121639 ← → 30121641

2進数表記:1110010111001111010101000

漢数字表記:三千十二万千六百四十

素因数分解:

2 3 × 5 1 × 739 1 × 1019 1

素因数の和:1769
約数の個数: 32
約数和(自身を含む): 67932000
約数和(自身を除く): 37810360

約数列:
[1, 2, 4, 5, 8, 10, 20, 40, 739, 1019, 1478, 2038, 2956, 3695, 4076, 5095, 5912, 7390, 8152, 10190, 14780, 20380, 29560, 40760, 753041, 1506082, 3012164, 3765205, 6024328, 7530410, 15060820, 30121640]

約数ペア:
[(1, 30121640), (2, 15060820), (4, 7530410), (5, 6024328), (8, 3765205), (10, 3012164), (20, 1506082), (40, 753041), (739, 40760), (1019, 29560), (1478, 20380), (2038, 14780), (2956, 10190), (3695, 8152), (4076, 7390), (5095, 5912)]

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