1287056

素因数分解:

$2^4\times {\mathrm{257}}^1\times {\mathrm{313}}^1$

素因数の和:578

約数の個数: 20

約数和(自身を含む): 2511372

約数和(自身を除く): 1224316

約数列:

[1, 2, 4, 8, 16, 257, 313, 514, 626, 1028, 1252, 2056, 2504, 4112, 5008, 80441, 160882, 321764, 643528, 1287056]

約数ペア:

[(1, 1287056), (2, 643528), (4, 321764), (8, 160882), (16, 80441), (257, 5008), (313, 4112), (514, 2504), (626, 2056), (1028, 1252)]