About the Number

642390480

642390479 ← → 642390481

2進数表記:100110010010100001100111010000

漢数字表記:六億四千二百三十九万四百八十

素因数分解:

2 4 × 3 3 × 5 1 × 297403 1

素因数の和:297425
約数の個数: 80
約数和(自身を含む): 2212685760
約数和(自身を除く): 1570295280

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 297403, 594806, 892209, 1189612, 1487015, 1784418, 2379224, 2676627, 2974030, 3568836, 4461045, 4758448, 5353254, 5948060, 7137672, 8029881, 8922090, 10706508, 11896120, 13383135, 14275344, 16059762, 17844180, 21413016, 23792240, 26766270, 32119524, 35688360, 40149405, 42826032, 53532540, 64239048, 71376720, 80298810, 107065080, 128478096, 160597620, 214130160, 321195240, 642390480]

約数ペア:
[(1, 642390480), (2, 321195240), (3, 214130160), (4, 160597620), (5, 128478096), (6, 107065080), (8, 80298810), (9, 71376720), (10, 64239048), (12, 53532540), (15, 42826032), (16, 40149405), (18, 35688360), (20, 32119524), (24, 26766270), (27, 23792240), (30, 21413016), (36, 17844180), (40, 16059762), (45, 14275344), (48, 13383135), (54, 11896120), (60, 10706508), (72, 8922090), (80, 8029881), (90, 7137672), (108, 5948060), (120, 5353254), (135, 4758448), (144, 4461045), (180, 3568836), (216, 2974030), (240, 2676627), (270, 2379224), (360, 1784418), (432, 1487015), (540, 1189612), (720, 892209), (1080, 594806), (2160, 297403)]

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