18777011985

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{72229}}^1$

素因数の和:72402

約数の個数: 48

約数和(自身を含む): 33465603600

約数和(自身を除く): 14688591615

約数列:

[1, 3, 5, 9, 15, 45, 53, 109, 159, 265, 327, 477, 545, 795, 981, 1635, 2385, 4905, 5777, 17331, 28885, 51993, 72229, 86655, 216687, 259965, 361145, 650061, 1083435, 3250305, 3828137, 7872961, 11484411, 19140685, 23618883, 34453233, 39364805, 57422055, 70856649, 118094415, 172266165, 354283245, 417266933, 1251800799, 2086334665, 3755402397, 6259003995, 18777011985]

約数ペア:

[(1, 18777011985), (3, 6259003995), (5, 3755402397), (9, 2086334665), (15, 1251800799), (45, 417266933), (53, 354283245), (109, 172266165), (159, 118094415), (265, 70856649), (327, 57422055), (477, 39364805), (545, 34453233), (795, 23618883), (981, 19140685), (1635, 11484411), (2385, 7872961), (4905, 3828137), (5777, 3250305), (17331, 1083435), (28885, 650061), (51993, 361145), (72229, 259965), (86655, 216687)]