128606786

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^2\times {\mathrm{79}}^1$

素因数の和:172

約数の個数: 72

約数和(自身を含む): 253572480

約数和(自身を除く): 124965694

約数列:

[1, 2, 7, 11, 14, 22, 31, 62, 77, 79, 121, 154, 158, 217, 242, 341, 434, 553, 682, 847, 869, 961, 1106, 1694, 1738, 1922, 2387, 2449, 3751, 4774, 4898, 6083, 6727, 7502, 9559, 10571, 12166, 13454, 17143, 19118, 21142, 26257, 26939, 34286, 52514, 53878, 66913, 73997, 75919, 116281, 133826, 147994, 151838, 188573, 232562, 296329, 377146, 531433, 592658, 813967, 835109, 1062866, 1627934, 1670218, 2074303, 4148606, 5845763, 9186199, 11691526, 18372398, 64303393, 128606786]

約数ペア:

[(1, 128606786), (2, 64303393), (7, 18372398), (11, 11691526), (14, 9186199), (22, 5845763), (31, 4148606), (62, 2074303), (77, 1670218), (79, 1627934), (121, 1062866), (154, 835109), (158, 813967), (217, 592658), (242, 531433), (341, 377146), (434, 296329), (553, 232562), (682, 188573), (847, 151838), (869, 147994), (961, 133826), (1106, 116281), (1694, 75919), (1738, 73997), (1922, 66913), (2387, 53878), (2449, 52514), (3751, 34286), (4774, 26939), (4898, 26257), (6083, 21142), (6727, 19118), (7502, 17143), (9559, 13454), (10571, 12166)]