197778878

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{997}}^1$

素因数の和:1208

約数の個数: 32

約数和(自身を含む): 331112448

約数和(自身を除く): 133333570

約数列:

[1, 2, 11, 22, 71, 127, 142, 254, 781, 997, 1397, 1562, 1994, 2794, 9017, 10967, 18034, 21934, 70787, 99187, 126619, 141574, 198374, 253238, 778657, 1392809, 1557314, 2785618, 8989949, 17979898, 98889439, 197778878]

約数ペア:

[(1, 197778878), (2, 98889439), (11, 17979898), (22, 8989949), (71, 2785618), (127, 1557314), (142, 1392809), (254, 778657), (781, 253238), (997, 198374), (1397, 141574), (1562, 126619), (1994, 99187), (2794, 70787), (9017, 21934), (10967, 18034)]