56290760

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{2129}}^1$

素因数の和:2801

約数の個数: 32

約数和(自身を含む): 126905400

約数和(自身を除く): 70614640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2129, 2644, 3305, 4258, 5288, 6610, 8516, 10645, 13220, 17032, 21290, 26440, 42580, 85160, 1407269, 2814538, 5629076, 7036345, 11258152, 14072690, 28145380, 56290760]

約数ペア:

[(1, 56290760), (2, 28145380), (4, 14072690), (5, 11258152), (8, 7036345), (10, 5629076), (20, 2814538), (40, 1407269), (661, 85160), (1322, 42580), (2129, 26440), (2644, 21290), (3305, 17032), (4258, 13220), (5288, 10645), (6610, 8516)]