688291268

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1\times {\mathrm{1901}}^1$

素因数の和:2172

約数の個数: 48

約数和(自身を含む): 1405106304

約数和(自身を除く): 716815036

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 193, 268, 386, 469, 772, 938, 1351, 1876, 1901, 2702, 3802, 5404, 7604, 12931, 13307, 25862, 26614, 51724, 53228, 90517, 127367, 181034, 254734, 362068, 366893, 509468, 733786, 891569, 1467572, 1783138, 2568251, 3566276, 5136502, 10273004, 24581831, 49163662, 98327324, 172072817, 344145634, 688291268]

約数ペア:

[(1, 688291268), (2, 344145634), (4, 172072817), (7, 98327324), (14, 49163662), (28, 24581831), (67, 10273004), (134, 5136502), (193, 3566276), (268, 2568251), (386, 1783138), (469, 1467572), (772, 891569), (938, 733786), (1351, 509468), (1876, 366893), (1901, 362068), (2702, 254734), (3802, 181034), (5404, 127367), (7604, 90517), (12931, 53228), (13307, 51724), (25862, 26614)]