1278679754

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{26407}}^1$

素因数の和:26522

約数の個数: 32

約数和(自身を含む): 2190385152

約数和(自身を除く): 911705398

約数列:

[1, 2, 11, 22, 31, 62, 71, 142, 341, 682, 781, 1562, 2201, 4402, 24211, 26407, 48422, 52814, 290477, 580954, 818617, 1637234, 1874897, 3749794, 9004787, 18009574, 20623867, 41247734, 58121807, 116243614, 639339877, 1278679754]

約数ペア:

[(1, 1278679754), (2, 639339877), (11, 116243614), (22, 58121807), (31, 41247734), (62, 20623867), (71, 18009574), (142, 9004787), (341, 3749794), (682, 1874897), (781, 1637234), (1562, 818617), (2201, 580954), (4402, 290477), (24211, 52814), (26407, 48422)]