About the Number

1213202480

1213202479 ← → 1213202481

2進数表記:1001000010100000000000000110000

漢数字表記:十二億千三百二十万二千四百八十

素因数分解:

2 4 × 5 1 × 7 1 × 163 1 × 13291 1

素因数の和:13474
約数の個数: 80
約数和(自身を含む): 3243673344
約数和(自身を除く): 2030470864

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 163, 280, 326, 560, 652, 815, 1141, 1304, 1630, 2282, 2608, 3260, 4564, 5705, 6520, 9128, 11410, 13040, 13291, 18256, 22820, 26582, 45640, 53164, 66455, 91280, 93037, 106328, 132910, 186074, 212656, 265820, 372148, 465185, 531640, 744296, 930370, 1063280, 1488592, 1860740, 2166433, 3721480, 4332866, 7442960, 8665732, 10832165, 15165031, 17331464, 21664330, 30330062, 34662928, 43328660, 60660124, 75825155, 86657320, 121320248, 151650310, 173314640, 242640496, 303300620, 606601240, 1213202480]

約数ペア:
[(1, 1213202480), (2, 606601240), (4, 303300620), (5, 242640496), (7, 173314640), (8, 151650310), (10, 121320248), (14, 86657320), (16, 75825155), (20, 60660124), (28, 43328660), (35, 34662928), (40, 30330062), (56, 21664330), (70, 17331464), (80, 15165031), (112, 10832165), (140, 8665732), (163, 7442960), (280, 4332866), (326, 3721480), (560, 2166433), (652, 1860740), (815, 1488592), (1141, 1063280), (1304, 930370), (1630, 744296), (2282, 531640), (2608, 465185), (3260, 372148), (4564, 265820), (5705, 212656), (6520, 186074), (9128, 132910), (11410, 106328), (13040, 93037), (13291, 91280), (18256, 66455), (22820, 53164), (26582, 45640)]

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