2019102920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{27241}}^1$

素因数の和:27378

約数の個数: 64

約数和(自身を含む): 4854524400

約数和(自身を除く): 2835421480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 109, 136, 170, 218, 340, 436, 545, 680, 872, 1090, 1853, 2180, 3706, 4360, 7412, 9265, 14824, 18530, 27241, 37060, 54482, 74120, 108964, 136205, 217928, 272410, 463097, 544820, 926194, 1089640, 1852388, 2315485, 2969269, 3704776, 4630970, 5938538, 9261940, 11877076, 14846345, 18523880, 23754152, 29692690, 50477573, 59385380, 100955146, 118770760, 201910292, 252387865, 403820584, 504775730, 1009551460, 2019102920]

約数ペア:

[(1, 2019102920), (2, 1009551460), (4, 504775730), (5, 403820584), (8, 252387865), (10, 201910292), (17, 118770760), (20, 100955146), (34, 59385380), (40, 50477573), (68, 29692690), (85, 23754152), (109, 18523880), (136, 14846345), (170, 11877076), (218, 9261940), (340, 5938538), (436, 4630970), (545, 3704776), (680, 2969269), (872, 2315485), (1090, 1852388), (1853, 1089640), (2180, 926194), (3706, 544820), (4360, 463097), (7412, 272410), (9265, 217928), (14824, 136205), (18530, 108964), (27241, 74120), (37060, 54482)]