About the Number

201215880

201215879 ← → 201215881

2進数表記:1011111111100100111110001000

漢数字表記:二億百二十一万五千八百八十

素因数分解:

2 3 × 3 3 × 5 1 × 186311 1

素因数の和:186331
約数の個数: 64
約数和(自身を含む): 670723200
約数和(自身を除く): 469507320

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 186311, 372622, 558933, 745244, 931555, 1117866, 1490488, 1676799, 1863110, 2235732, 2794665, 3353598, 3726220, 4471464, 5030397, 5589330, 6707196, 7452440, 8383995, 10060794, 11178660, 13414392, 16767990, 20121588, 22357320, 25151985, 33535980, 40243176, 50303970, 67071960, 100607940, 201215880]

約数ペア:
[(1, 201215880), (2, 100607940), (3, 67071960), (4, 50303970), (5, 40243176), (6, 33535980), (8, 25151985), (9, 22357320), (10, 20121588), (12, 16767990), (15, 13414392), (18, 11178660), (20, 10060794), (24, 8383995), (27, 7452440), (30, 6707196), (36, 5589330), (40, 5030397), (45, 4471464), (54, 3726220), (60, 3353598), (72, 2794665), (90, 2235732), (108, 1863110), (120, 1676799), (135, 1490488), (180, 1117866), (216, 931555), (270, 745244), (360, 558933), (540, 372622), (1080, 186311)]

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