68556640

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3931}}^1$

素因数の和:4055

約数の個数: 48

約数和(自身を含む): 163492560

約数和(自身を除く): 94935920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 872, 1090, 1744, 2180, 3488, 3931, 4360, 7862, 8720, 15724, 17440, 19655, 31448, 39310, 62896, 78620, 125792, 157240, 314480, 428479, 628960, 856958, 1713916, 2142395, 3427832, 4284790, 6855664, 8569580, 13711328, 17139160, 34278320, 68556640]

約数ペア:

[(1, 68556640), (2, 34278320), (4, 17139160), (5, 13711328), (8, 8569580), (10, 6855664), (16, 4284790), (20, 3427832), (32, 2142395), (40, 1713916), (80, 856958), (109, 628960), (160, 428479), (218, 314480), (436, 157240), (545, 125792), (872, 78620), (1090, 62896), (1744, 39310), (2180, 31448), (3488, 19655), (3931, 17440), (4360, 15724), (7862, 8720)]