278501288

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{25999}}^1$

素因数の和:26121

約数の個数: 32

約数和(自身を含む): 567840000

約数和(自身を除く): 289338712

約数列:

[1, 2, 4, 8, 13, 26, 52, 103, 104, 206, 412, 824, 1339, 2678, 5356, 10712, 25999, 51998, 103996, 207992, 337987, 675974, 1351948, 2677897, 2703896, 5355794, 10711588, 21423176, 34812661, 69625322, 139250644, 278501288]

約数ペア:

[(1, 278501288), (2, 139250644), (4, 69625322), (8, 34812661), (13, 21423176), (26, 10711588), (52, 5355794), (103, 2703896), (104, 2677897), (206, 1351948), (412, 675974), (824, 337987), (1339, 207992), (2678, 103996), (5356, 51998), (10712, 25999)]