123763568

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{443}}^1\times {\mathrm{919}}^1$

素因数の和:1389

約数の個数: 40

約数和(自身を含む): 253257600

約数和(自身を除く): 129494032

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 443, 886, 919, 1772, 1838, 3544, 3676, 7088, 7352, 8417, 14704, 16834, 17461, 33668, 34922, 67336, 69844, 134672, 139688, 279376, 407117, 814234, 1628468, 3256936, 6513872, 7735223, 15470446, 30940892, 61881784, 123763568]

約数ペア:

[(1, 123763568), (2, 61881784), (4, 30940892), (8, 15470446), (16, 7735223), (19, 6513872), (38, 3256936), (76, 1628468), (152, 814234), (304, 407117), (443, 279376), (886, 139688), (919, 134672), (1772, 69844), (1838, 67336), (3544, 34922), (3676, 33668), (7088, 17461), (7352, 16834), (8417, 14704)]