About the Number

220431380

220431379 ← → 220431381

2進数表記:1101001000111000010000010100

漢数字表記:二億二千四十三万千三百八十

素因数分解:

2 2 × 5 1 × 13 1 × 847813 1

素因数の和:847835
約数の個数: 24
約数和(自身を含む): 498514632
約数和(自身を除く): 278083252

約数列:
[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 847813, 1695626, 3391252, 4239065, 8478130, 11021569, 16956260, 22043138, 44086276, 55107845, 110215690, 220431380]

約数ペア:
[(1, 220431380), (2, 110215690), (4, 55107845), (5, 44086276), (10, 22043138), (13, 16956260), (20, 11021569), (26, 8478130), (52, 4239065), (65, 3391252), (130, 1695626), (260, 847813)]

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