About the Number

208013640

208013639 ← → 208013641

2進数表記:1100011001100000100101001000

漢数字表記:二億八百一万三千六百四十

素因数分解:

2 3 × 3 1 × 5 1 × 331 1 × 5237 1

素因数の和:5582
約数の個数: 64
約数和(自身を含む): 626045760
約数和(自身を除く): 418032120

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 331, 662, 993, 1324, 1655, 1986, 2648, 3310, 3972, 4965, 5237, 6620, 7944, 9930, 10474, 13240, 15711, 19860, 20948, 26185, 31422, 39720, 41896, 52370, 62844, 78555, 104740, 125688, 157110, 209480, 314220, 628440, 1733447, 3466894, 5200341, 6933788, 8667235, 10400682, 13867576, 17334470, 20801364, 26001705, 34668940, 41602728, 52003410, 69337880, 104006820, 208013640]

約数ペア:
[(1, 208013640), (2, 104006820), (3, 69337880), (4, 52003410), (5, 41602728), (6, 34668940), (8, 26001705), (10, 20801364), (12, 17334470), (15, 13867576), (20, 10400682), (24, 8667235), (30, 6933788), (40, 5200341), (60, 3466894), (120, 1733447), (331, 628440), (662, 314220), (993, 209480), (1324, 157110), (1655, 125688), (1986, 104740), (2648, 78555), (3310, 62844), (3972, 52370), (4965, 41896), (5237, 39720), (6620, 31422), (7944, 26185), (9930, 20948), (10474, 19860), (13240, 15711)]

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