1980055

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:199

約数の個数: 32

約数和(自身を含む): 3064320

約数和(自身を除く): 1084265

約数列:

[1, 5, 7, 11, 35, 37, 55, 77, 139, 185, 259, 385, 407, 695, 973, 1295, 1529, 2035, 2849, 4865, 5143, 7645, 10703, 14245, 25715, 36001, 53515, 56573, 180005, 282865, 396011, 1980055]

約数ペア:

[(1, 1980055), (5, 396011), (7, 282865), (11, 180005), (35, 56573), (37, 53515), (55, 36001), (77, 25715), (139, 14245), (185, 10703), (259, 7645), (385, 5143), (407, 4865), (695, 2849), (973, 2035), (1295, 1529)]