280912568

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{919}}^1\times {\mathrm{2011}}^1$

素因数の和:2955

約数の個数: 32

約数和(自身を含む): 555312000

約数和(自身を除く): 274399432

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 919, 1838, 2011, 3676, 4022, 7352, 8044, 16088, 17461, 34922, 38209, 69844, 76418, 139688, 152836, 305672, 1848109, 3696218, 7392436, 14784872, 35114071, 70228142, 140456284, 280912568]

約数ペア:

[(1, 280912568), (2, 140456284), (4, 70228142), (8, 35114071), (19, 14784872), (38, 7392436), (76, 3696218), (152, 1848109), (919, 305672), (1838, 152836), (2011, 139688), (3676, 76418), (4022, 69844), (7352, 38209), (8044, 34922), (16088, 17461)]