19979681760

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13874779}}^1$

素因数の和:13874800

約数の個数: 72

約数和(自身を含む): 68180668920

約数和(自身を除く): 48200987160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 13874779, 27749558, 41624337, 55499116, 69373895, 83248674, 110998232, 124873011, 138747790, 166497348, 208121685, 221996464, 249746022, 277495580, 332994696, 416243370, 443992928, 499492044, 554991160, 624365055, 665989392, 832486740, 998984088, 1109982320, 1248730110, 1331978784, 1664973480, 1997968176, 2219964640, 2497460220, 3329946960, 3995936352, 4994920440, 6659893920, 9989840880, 19979681760]

約数ペア:

[(1, 19979681760), (2, 9989840880), (3, 6659893920), (4, 4994920440), (5, 3995936352), (6, 3329946960), (8, 2497460220), (9, 2219964640), (10, 1997968176), (12, 1664973480), (15, 1331978784), (16, 1248730110), (18, 1109982320), (20, 998984088), (24, 832486740), (30, 665989392), (32, 624365055), (36, 554991160), (40, 499492044), (45, 443992928), (48, 416243370), (60, 332994696), (72, 277495580), (80, 249746022), (90, 221996464), (96, 208121685), (120, 166497348), (144, 138747790), (160, 124873011), (180, 110998232), (240, 83248674), (288, 69373895), (360, 55499116), (480, 41624337), (720, 27749558), (1440, 13874779)]