2019947840

素因数分解:

$2^6\times 5^1\times {\mathrm{79}}^1\times {\mathrm{79903}}^1$

素因数の和:79999

約数の個数: 56

約数和(自身を含む): 4870947840

約数和(自身を除く): 2851000000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 158, 160, 316, 320, 395, 632, 790, 1264, 1580, 2528, 3160, 5056, 6320, 12640, 25280, 79903, 159806, 319612, 399515, 639224, 799030, 1278448, 1598060, 2556896, 3196120, 5113792, 6312337, 6392240, 12624674, 12784480, 25249348, 25568960, 31561685, 50498696, 63123370, 100997392, 126246740, 201994784, 252493480, 403989568, 504986960, 1009973920, 2019947840]

約数ペア:

[(1, 2019947840), (2, 1009973920), (4, 504986960), (5, 403989568), (8, 252493480), (10, 201994784), (16, 126246740), (20, 100997392), (32, 63123370), (40, 50498696), (64, 31561685), (79, 25568960), (80, 25249348), (158, 12784480), (160, 12624674), (316, 6392240), (320, 6312337), (395, 5113792), (632, 3196120), (790, 2556896), (1264, 1598060), (1580, 1278448), (2528, 799030), (3160, 639224), (5056, 399515), (6320, 319612), (12640, 159806), (25280, 79903)]