About the Number

13000780

13000779 ← → 13000781

2進数表記:110001100110000001001100

漢数字表記:千三百万七百八十

素因数分解:

2 2 × 5 1 × 13 1 × 31 1 × 1613 1

素因数の和:1666
約数の個数: 48
約数和(自身を含む): 30369024
約数和(自身を除く): 17368244

約数列:
[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 1613, 2015, 3226, 4030, 6452, 8060, 8065, 16130, 20969, 32260, 41938, 50003, 83876, 100006, 104845, 200012, 209690, 250015, 419380, 500030, 650039, 1000060, 1300078, 2600156, 3250195, 6500390, 13000780]

約数ペア:
[(1, 13000780), (2, 6500390), (4, 3250195), (5, 2600156), (10, 1300078), (13, 1000060), (20, 650039), (26, 500030), (31, 419380), (52, 250015), (62, 209690), (65, 200012), (124, 104845), (130, 100006), (155, 83876), (260, 50003), (310, 41938), (403, 32260), (620, 20969), (806, 16130), (1612, 8065), (1613, 8060), (2015, 6452), (3226, 4030)]

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