25649468

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{1997}}^1$

素因数の和:2046

約数の個数: 36

約数和(自身を含む): 51188760

約数和(自身を除く): 25539292

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 169, 247, 338, 494, 676, 988, 1997, 3211, 3994, 6422, 7988, 12844, 25961, 37943, 51922, 75886, 103844, 151772, 337493, 493259, 674986, 986518, 1349972, 1973036, 6412367, 12824734, 25649468]

約数ペア:

[(1, 25649468), (2, 12824734), (4, 6412367), (13, 1973036), (19, 1349972), (26, 986518), (38, 674986), (52, 493259), (76, 337493), (169, 151772), (247, 103844), (338, 75886), (494, 51922), (676, 37943), (988, 25961), (1997, 12844), (3211, 7988), (3994, 6422)]