39718820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{337}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 85857408

約数和(自身を除く): 46138588

約数列:

[1, 2, 4, 5, 10, 20, 71, 83, 142, 166, 284, 332, 337, 355, 415, 674, 710, 830, 1348, 1420, 1660, 1685, 3370, 5893, 6740, 11786, 23572, 23927, 27971, 29465, 47854, 55942, 58930, 95708, 111884, 117860, 119635, 139855, 239270, 279710, 478540, 559420, 1985941, 3971882, 7943764, 9929705, 19859410, 39718820]

約数ペア:

[(1, 39718820), (2, 19859410), (4, 9929705), (5, 7943764), (10, 3971882), (20, 1985941), (71, 559420), (83, 478540), (142, 279710), (166, 239270), (284, 139855), (332, 119635), (337, 117860), (355, 111884), (415, 95708), (674, 58930), (710, 55942), (830, 47854), (1348, 29465), (1420, 27971), (1660, 23927), (1685, 23572), (3370, 11786), (5893, 6740)]